/foo.js:1:10 lint/nursery/noDeprecatedImports ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Deprecated import.
> 1 │ import { oldUtility } from "./utils.js";
│ ^^^^^^^^^^
2 │
ℹ An @deprecated annotation indicates the author doesn't want you to rely on this import anymore.
ℹ You should probably import a different symbol instead.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
/foo.js:1:10 lint/suspicious/noDeprecatedImports ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Deprecated import.
> 1 │ import { oldUtility } from "./utils.js";
│ ^^^^^^^^^^
2 │
ℹ An @deprecated annotation indicates the author doesn't want you to rely on this import anymore.
ℹ You should probably import a different symbol instead.
code-block.graphql:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.graphql:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.graphql:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.graphql:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.css:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.css:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.css:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
1 │ /* Only comments */
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.css:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
1 │ /* Only comments */
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.css:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.css:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
1 │ // Only comments
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
1 │ // Only comments
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
1 │ /* Only comments */
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
1 │ /* Only comments */
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:1:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 1 │ 'use strict';
│ ^^^^^^^^^^^^^
2 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 1 │ 'use strict';
│ ^^^^^^^^^^^^^
2 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:1:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 1 │ ;
│ ^
2 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 1 │ ;
│ ^
2 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:1:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 1 │ {
│ ^
> 2 │ }
│ ^
3 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 1 │ {
│ ^
> 2 │ }
│ ^
3 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:1:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 1 │ #!/usr/bin/env node
│ ^^^^^^^^^^^^^^^^^^^
2 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 1 │ #!/usr/bin/env node
│ ^^^^^^^^^^^^^^^^^^^
2 │
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
code-block.js:2:1 lint/nursery/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:1 lint/suspicious/noEmptySource ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ An empty source is not allowed.
> 2 │
│
ℹ Empty sources can clutter the codebase and increase cognitive load; deleting empty sources can help reduce it.
/foobar.js:1:21 lint/nursery/noImportCycles ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This import is part of a cycle.
> 1 │ import { baz } from "./baz.js";
│ ^^^^^^^^^^
2 │
3 │ export function foo() {
ℹ This import resolves to /baz.js
... which imports /foobar.js
... which is the file we're importing from.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
/foobar.js:1:21 lint/suspicious/noImportCycles ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This import is part of a cycle.
> 1 │ import { baz } from "./baz.js";
│ ^^^^^^^^^^
2 │
3 │ export function foo() {
ℹ This import resolves to /baz.js
... which imports /foobar.js
... which is the file we're importing from.
/baz.js:1:21 lint/nursery/noImportCycles ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This import is part of a cycle.
> 1 │ import { bar } from "./foobar.js";
│ ^^^^^^^^^^^^^
2 │
3 │ export function baz() {
ℹ This import resolves to /foobar.js
... which imports /baz.js
... which is the file we're importing from.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
/baz.js:1:21 lint/suspicious/noImportCycles ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This import is part of a cycle.
> 1 │ import { bar } from "./foobar.js";
│ ^^^^^^^^^^^^^
2 │
3 │ export function baz() {
ℹ This import resolves to /foobar.js
... which imports /baz.js
... which is the file we're importing from.
/qux.ts:1:26 lint/nursery/noImportCycles ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This import is part of a cycle.
> 1 │ import type { Foo } from "./types.ts";
│ ^^^^^^^^^^^^
2 │
3 │ export function bar(foo: Foo) {
ℹ This import resolves to /types.ts
... which imports /qux.ts
... which is the file we're importing from.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
/qux.ts:1:26 lint/suspicious/noImportCycles ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This import is part of a cycle.
> 1 │ import type { Foo } from "./types.ts";
│ ^^^^^^^^^^^^
2 │
3 │ export function bar(foo: Foo) {
ℹ This import resolves to /types.ts
... which imports /qux.ts
... which is the file we're importing from.
Hello World
```
-code-block.jsx:1:6 lint/nursery/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <div>Hello World</div>
│ ^^^^^^^^^^^
2 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:1:6 lint/style/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <div>Hello World</div>
│ ^^^^^^^^^^^
2 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
code-block.jsx:1:3 lint/nursery/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <>Welcome to our site</>
│ ^^^^^^^^^^^^^^^^^^^
2 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:1:3 lint/style/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <>Welcome to our site</>
│ ^^^^^^^^^^^^^^^^^^^
2 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
code-block.jsx:1:7 lint/nursery/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <span>
│
> 2 │ Please enter your name
> 3 │ </span>
│
4 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:1:7 lint/style/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <span>
│
> 2 │ Please enter your name
> 3 │ </span>
│
4 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
code-block.jsx:2:4 lint/nursery/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
1 │ <span>
> 2 │ {'Please enter your name'}
│ ^^^^^^^^^^^^^^^^^^^^^^^^
3 │ </span>
4 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:2:4 lint/style/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
1 │ <span>
> 2 │ {'Please enter your name'}
│ ^^^^^^^^^^^^^^^^^^^^^^^^
3 │ </span>
4 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
code-block.jsx:1:18 lint/nursery/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <Component title="Hello!" />
│ ^^^^^^^^
2 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:1:18 lint/style/noJsxLiterals ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Incorrect use of string literal detected.
> 1 │ <Component title="Hello!" />
│ ^^^^^^^^
2 │
ℹ String literals in JSX can make code harder to maintain and internationalize.
ℹ Consider avoiding hardcoded strings entirely.
code-block.jsx:3:16 lint/nursery/noNextAsyncClientComponent ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ The component MyComponent is an async client component, which is not allowed.
1 │ "use client";
2 │
> 3 │ export default async function MyComponent() {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 4 │ return <div>Hello</div>;
> 5 │ }
│ ^
6 │
ℹ Client components with "use client" directive should not be async functions as this can cause hydration mismatches and break React's rendering lifecycle.
ℹ Consider using useEffect for async operations inside the component, or remove the "use client" directive if this should be a server component.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:3:16 lint/correctness/noNextAsyncClientComponent ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The component MyComponent is an async client component, which is not allowed.
1 │ "use client";
2 │
> 3 │ export default async function MyComponent() {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 4 │ return <div>Hello</div>;
> 5 │ }
│ ^
6 │
ℹ Client components with "use client" directive should not be async functions as this can cause hydration mismatches and break React's rendering lifecycle.
ℹ Consider using useEffect for async operations inside the component, or remove the "use client" directive if this should be a server component.
code-block.jsx:3:17 lint/nursery/noReactForwardRef FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Use of forwardRef is detected, which is deprecated.
1 │ import { forwardRef } from "react";
2 │
> 3 │ const MyInput = forwardRef(function MyInput(props, ref) {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 4 │ return <input ref={ref} {...props} />;
> 5 │ });
│ ^^
6 │
ℹ In React 19, 'forwardRef' is no longer necessary. Pass 'ref' as a prop instead.
ℹ Replace the use of forwardRef with passing ref as a prop.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Unsafe fix: Remove the forwardRef() call and receive the ref as a prop.
1 1 │ import { forwardRef } from "react";
2 2 │
3 │ - const·MyInput·=·forwardRef(function·MyInput(props,·ref)·{
3 │ + const·MyInput·=·function·MyInput({·ref,·...props·})·{
4 4 │ return <input ref={ref} {...props} />;
5 │ - });
5 │ + };
6 6 │
code-block.jsx:3:17 lint/suspicious/noReactForwardRef FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Use of forwardRef is detected, which is deprecated.
1 │ import { forwardRef } from "react";
2 │
> 3 │ const MyInput = forwardRef(function MyInput(props, ref) {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 4 │ return <input ref={ref} {...props} />;
> 5 │ });
│ ^^
6 │
ℹ In React 19, 'forwardRef' is no longer necessary. Pass 'ref' as a prop instead.
ℹ Replace the use of forwardRef with passing ref as a prop.
ℹ Unsafe fix: Remove the forwardRef() call and receive the ref as a prop.
1 1 │ import { forwardRef } from "react";
2 2 │
3 │ - const·MyInput·=·forwardRef(function·MyInput(props,·ref)·{
3 │ + const·MyInput·=·function·MyInput({·ref,·...props·})·{
4 4 │ return <input ref={ref} {...props} />;
5 │ - });
5 │ + };
6 6 │
code-block.jsx:3:17 lint/nursery/noReactForwardRef FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Use of forwardRef is detected, which is deprecated.
1 │ import { forwardRef } from "react";
2 │
> 3 │ const MyInput = forwardRef((props, ref) => {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 4 │ return <input ref={ref} {...props} />;
> 5 │ });
│ ^^
6 │
ℹ In React 19, 'forwardRef' is no longer necessary. Pass 'ref' as a prop instead.
ℹ Replace the use of forwardRef with passing ref as a prop.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Unsafe fix: Remove the forwardRef() call and receive the ref as a prop.
1 1 │ import { forwardRef } from "react";
2 2 │
3 │ - const·MyInput·=·forwardRef((props,·ref)·=>·{
3 │ + const·MyInput·=·({·ref,·...props·})·=>·{
4 4 │ return <input ref={ref} {...props} />;
5 │ - });
5 │ + };
6 6 │
code-block.jsx:3:17 lint/suspicious/noReactForwardRef FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Use of forwardRef is detected, which is deprecated.
1 │ import { forwardRef } from "react";
2 │
> 3 │ const MyInput = forwardRef((props, ref) => {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 4 │ return <input ref={ref} {...props} />;
> 5 │ });
│ ^^
6 │
ℹ In React 19, 'forwardRef' is no longer necessary. Pass 'ref' as a prop instead.
ℹ Replace the use of forwardRef with passing ref as a prop.
ℹ Unsafe fix: Remove the forwardRef() call and receive the ref as a prop.
1 1 │ import { forwardRef } from "react";
2 2 │
3 │ - const·MyInput·=·forwardRef((props,·ref)·=>·{
3 │ + const·MyInput·=·({·ref,·...props·})·=>·{
4 4 │ return <input ref={ref} {...props} />;
5 │ - });
5 │ + };
6 6 │
code-block.js:3:10 lint/nursery/noShadow ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This variable shadows another variable with the same name in the outer scope.
1 │ const foo = "bar";
2 │ if (true) {
> 3 │ const foo = "baz";
│ ^^^
4 │ }
5 │
ℹ This is the shadowed variable, which is now inaccessible in the inner scope.
> 1 │ const foo = "bar";
│ ^^^
2 │ if (true) {
3 │ const foo = "baz";
ℹ Consider renaming this variable. It's easy to confuse the origin of variables if they share the same name.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:3:10 lint/nursery/noShadow ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This variable shadows another variable with the same name in the outer scope.
1 │ const foo = "bar";
2 │ if (true) {
> 3 │ const foo = "baz";
│ ^^^
4 │ }
5 │
ℹ This is the shadowed variable, which is now inaccessible in the inner scope.
> 1 │ const foo = "bar";
│ ^^^
2 │ if (true) {
3 │ const foo = "baz";
ℹ Consider renaming this variable. It's easy to confuse the origin of variables if they share the same name.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:3:11 lint/nursery/noShadow ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This variable shadows another variable with the same name in the outer scope.
1 │ const foo = "bar";
2 │ const bar = function () {
> 3 │ const foo = 10;
│ ^^^
4 │ }
5 │
ℹ This is the shadowed variable, which is now inaccessible in the inner scope.
> 1 │ const foo = "bar";
│ ^^^
2 │ const bar = function () {
3 │ const foo = 10;
ℹ Consider renaming this variable. It's easy to confuse the origin of variables if they share the same name.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:3:11 lint/nursery/noShadow ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This variable shadows another variable with the same name in the outer scope.
1 │ const foo = "bar";
2 │ const bar = function () {
> 3 │ const foo = 10;
│ ^^^
4 │ }
5 │
ℹ This is the shadowed variable, which is now inaccessible in the inner scope.
> 1 │ const foo = "bar";
│ ^^^
2 │ const bar = function () {
3 │ const foo = 10;
ℹ Consider renaming this variable. It's easy to confuse the origin of variables if they share the same name.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:14 lint/nursery/noShadow ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This variable shadows another variable with the same name in the outer scope.
1 │ const foo = "bar";
> 2 │ function bar(foo) {
│ ^^^
3 │ foo = 10;
4 │ }
ℹ This is the shadowed variable, which is now inaccessible in the inner scope.
> 1 │ const foo = "bar";
│ ^^^
2 │ function bar(foo) {
3 │ foo = 10;
ℹ Consider renaming this variable. It's easy to confuse the origin of variables if they share the same name.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:14 lint/nursery/noShadow ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ This variable shadows another variable with the same name in the outer scope.
1 │ const foo = "bar";
> 2 │ function bar(foo) {
│ ^^^
3 │ foo = 10;
4 │ }
ℹ This is the shadowed variable, which is now inaccessible in the inner scope.
> 1 │ const foo = "bar";
│ ^^^
2 │ function bar(foo) {
3 │ foo = 10;
ℹ Consider renaming this variable. It's easy to confuse the origin of variables if they share the same name.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
/bar.js:2:10 lint/nursery/noUnresolvedImports ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ The path ./foo.js has no export named fooo.
1 │ // Attempt to import symbol with a typo:
> 2 │ import { fooo } from "./foo.js";
│ ^^^^
3 │
ℹ Make sure that the path is correct and that you're importing the right symbol.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
/bar.js:2:10 lint/correctness/noUnresolvedImports ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The path ./foo.js has no export named fooo.
1 │ // Attempt to import symbol with a typo:
> 2 │ import { fooo } from "./foo.js";
│ ^^^^
3 │
ℹ Make sure that the path is correct and that you're importing the right symbol.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ 0
│ ^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ 0
│ ^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:7 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ if(0) 0
│ ^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:7 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ if(0) 0
│ ^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:2 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ {0}
│ ^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:2 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ {0}
│ ^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ f(0), {}
│ ^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ f(0), {}
│ ^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ a && b()
│ ^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ a && b()
│ ^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ a, b()
│ ^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ a, b()
│ ^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ c = a, b
│ ^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ c = a, b
│ ^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ a() && function namedFunctionInExpressionContext () {f();}
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ a() && function namedFunctionInExpressionContext () {f();}
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ (function anIncompleteIIFE () {});
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ (function anIncompleteIIFE () {});
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ injectGlobal`body{ color: red; }`
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ injectGlobal`body{ color: red; }`
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.ts:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ Set<number>
│ ^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ Set<number>
│ ^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.ts:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ 1 as number
│ ^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ 1 as number
│ ^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.ts:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ window!
│ ^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ window!
│ ^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.jsx:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ <MyComponent />
│ ^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ <MyComponent />
│ ^^^^^^^^^^^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.jsx:1:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
> 1 │ <></>
│ ^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.jsx:1:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
> 1 │ <></>
│ ^^^^^
2 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:2:1 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
1 │ doSomething();
> 2 │ "use strict"; // this isn't in a directive prologue, because there is a non-directive statement before it
│ ^^^^^^^^^^^^^
3 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:1 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
1 │ doSomething();
> 2 │ "use strict"; // this isn't in a directive prologue, because there is a non-directive statement before it
│ ^^^^^^^^^^^^^
3 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:2:5 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
1 │ function foo() {
> 2 │ "bar" + 1;
│ ^^^^^^^^^
3 │ }
4 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:5 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
1 │ function foo() {
> 2 │ "bar" + 1;
│ ^^^^^^^^^
3 │ }
4 │
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:3:9 lint/nursery/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Expected an assignment or function call but found an expression instead.
1 │ class Foo {
2 │ static {
> 3 │ "use strict"; // class static blocks do not have directive prologues
│ ^^^^^^^^^^^^^
4 │ }
5 │ }
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:3:9 lint/suspicious/noUnusedExpressions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Expected an assignment or function call but found an expression instead.
1 │ class Foo {
2 │ static {
> 3 │ "use strict"; // class static blocks do not have directive prologues
│ ^^^^^^^^^^^^^
4 │ }
5 │ }
ℹ This expression may be unintentionally unused or it might be a function that you forgot to call.
code-block.js:3:9 lint/nursery/noUselessCatchBinding FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This catch binding is unused.
1 │ try {
2 │ // Do something
> 3 │ } catch (unused) {}
│ ^^^^^^^^
4 │
ℹ Since ECMAScript 2019, catch bindings are optional; you can omit the catch binding if you don't need it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Unsafe fix: Remove the catch binding.
3 │ }·catch·(unused)·{}
│ ---------
code-block.js:3:9 lint/complexity/noUselessCatchBinding FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This catch binding is unused.
1 │ try {
2 │ // Do something
> 3 │ } catch (unused) {}
│ ^^^^^^^^
4 │
ℹ Since ECMAScript 2019, catch bindings are optional; you can omit the catch binding if you don't need it.
ℹ Unsafe fix: Remove the catch binding.
3 │ }·catch·(unused)·{}
│ ---------
code-block.js:3:9 lint/nursery/noUselessCatchBinding FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This catch binding is unused.
1 │ try {
2 │ // Do something
> 3 │ } catch ({ unused }) {}
│ ^^^^^^^^^^^^
4 │
ℹ Since ECMAScript 2019, catch bindings are optional; you can omit the catch binding if you don't need it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Unsafe fix: Remove the catch binding.
3 │ }·catch·({·unused·})·{}
│ -------------
code-block.js:3:9 lint/complexity/noUselessCatchBinding FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This catch binding is unused.
1 │ try {
2 │ // Do something
> 3 │ } catch ({ unused }) {}
│ ^^^^^^^^^^^^
4 │
ℹ Since ECMAScript 2019, catch bindings are optional; you can omit the catch binding if you don't need it.
ℹ Unsafe fix: Remove the catch binding.
3 │ }·catch·({·unused·})·{}
│ -------------
code-block.js:3:9 lint/nursery/noUselessCatchBinding FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This catch binding is unused.
1 │ try {
2 │ // Do something
> 3 │ } catch ({ unused1, unused2 }) {}
│ ^^^^^^^^^^^^^^^^^^^^^^
4 │
ℹ Since ECMAScript 2019, catch bindings are optional; you can omit the catch binding if you don't need it.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Unsafe fix: Remove the catch binding.
3 │ }·catch·({·unused1,·unused2·})·{}
│ -----------------------
code-block.js:3:9 lint/complexity/noUselessCatchBinding FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ This catch binding is unused.
1 │ try {
2 │ // Do something
> 3 │ } catch ({ unused1, unused2 }) {}
│ ^^^^^^^^^^^^^^^^^^^^^^
4 │
ℹ Since ECMAScript 2019, catch bindings are optional; you can omit the catch binding if you don't need it.
ℹ Unsafe fix: Remove the catch binding.
3 │ }·catch·({·unused1,·unused2·})·{}
│ -----------------------
code-block.js:1:11 lint/nursery/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ let foo = undefined;
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Safe fix: Remove the undefined.
1 │ let·foo·=·undefined;
│ -----------
code-block.js:1:11 lint/complexity/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ let foo = undefined;
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ Safe fix: Remove the undefined.
1 │ let·foo·=·undefined;
│ -----------
code-block.js:1:14 lint/nursery/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ const {foo = undefined} = bar;
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Safe fix: Remove the undefined.
1 │ const·{foo·=·undefined}·=·bar;
│ -----------
code-block.js:1:14 lint/complexity/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ const {foo = undefined} = bar;
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ Safe fix: Remove the undefined.
1 │ const·{foo·=·undefined}·=·bar;
│ -----------
code-block.js:2:11 lint/nursery/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
1 │ function foo() {
> 2 │ return undefined;
│ ^^^^^^^^^
3 │ }
4 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Safe fix: Remove the undefined.
2 │ ···return·undefined;
│ ---------
code-block.js:2:11 lint/complexity/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
1 │ function foo() {
> 2 │ return undefined;
│ ^^^^^^^^^
3 │ }
4 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ Safe fix: Remove the undefined.
2 │ ···return·undefined;
│ ---------
code-block.js:2:9 lint/nursery/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
1 │ function* foo() {
> 2 │ yield undefined;
│ ^^^^^^^^^
3 │ }
4 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Safe fix: Remove the undefined.
2 │ ··yield·undefined;
│ ---------
code-block.js:2:9 lint/complexity/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
1 │ function* foo() {
> 2 │ yield undefined;
│ ^^^^^^^^^
3 │ }
4 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ Safe fix: Remove the undefined.
2 │ ··yield·undefined;
│ ---------
code-block.js:1:20 lint/nursery/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ function foo(bar = undefined) {}
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Safe fix: Remove the undefined.
1 │ function·foo(bar·=·undefined)·{}
│ -----------
code-block.js:1:20 lint/complexity/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ function foo(bar = undefined) {}
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ Safe fix: Remove the undefined.
1 │ function·foo(bar·=·undefined)·{}
│ -----------
code-block.js:1:21 lint/nursery/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ function foo({bar = undefined}) {}
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Safe fix: Remove the undefined.
1 │ function·foo({bar·=·undefined})·{}
│ -----------
code-block.js:1:21 lint/complexity/noUselessUndefined FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Don't use unnecessary undefined.
> 1 │ function foo({bar = undefined}) {}
│ ^^^^^^^^^
2 │
ℹ undefined is the default value for new variables, parameters, return statements, etc… so specifying it doesn't make any difference.
ℹ Safe fix: Remove the undefined.
1 │ function·foo({bar·=·undefined})·{}
│ -----------
code-block.vue:2:13 lint/nursery/noVueDuplicateKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Duplicate key foo found in Vue component.
1 │ export default {
> 2 │ props: ['foo'],
│ ^^^^^
3 │ data() {
4 │ return {
ℹ Key foo is also defined here.
3 │ data() {
4 │ return {
> 5 │ foo: 'bar'
│ ^^^
6 │ };
7 │ }
ℹ Keys defined in different Vue component options (props, data, methods, computed) can conflict when accessed in the template. Rename the key to avoid conflicts.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:2:13 lint/correctness/noVueDuplicateKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Duplicate key foo found in Vue component.
1 │ export default {
> 2 │ props: ['foo'],
│ ^^^^^
3 │ data() {
4 │ return {
ℹ Key foo is also defined here.
3 │ data() {
4 │ return {
> 5 │ foo: 'bar'
│ ^^^
6 │ };
7 │ }
ℹ Keys defined in different Vue component options (props, data, methods, computed) can conflict when accessed in the template. Rename the key to avoid conflicts.
code-block.vue:4:13 lint/nursery/noVueDuplicateKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Duplicate key message found in Vue component.
2 │ data() {
3 │ return {
> 4 │ message: 'hello'
│ ^^^^^^^
5 │ };
6 │ },
ℹ Key message is also defined here.
6 │ },
7 │ methods: {
> 8 │ message() {
│ ^^^^^^^
9 │ console.log('duplicate key');
10 │ }
ℹ Keys defined in different Vue component options (props, data, methods, computed) can conflict when accessed in the template. Rename the key to avoid conflicts.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:4:13 lint/correctness/noVueDuplicateKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Duplicate key message found in Vue component.
2 │ data() {
3 │ return {
> 4 │ message: 'hello'
│ ^^^^^^^
5 │ };
6 │ },
ℹ Key message is also defined here.
6 │ },
7 │ methods: {
> 8 │ message() {
│ ^^^^^^^
9 │ console.log('duplicate key');
10 │ }
ℹ Keys defined in different Vue component options (props, data, methods, computed) can conflict when accessed in the template. Rename the key to avoid conflicts.
code-block.vue:3:9 lint/nursery/noVueDuplicateKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Duplicate key count found in Vue component.
1 │ export default {
2 │ computed: {
> 3 │ count() {
│ ^^^^^
4 │ return this.value * 2;
5 │ }
ℹ Key count is also defined here.
6 │ },
7 │ methods: {
> 8 │ count() {
│ ^^^^^
9 │ this.value++;
10 │ }
ℹ Keys defined in different Vue component options (props, data, methods, computed) can conflict when accessed in the template. Rename the key to avoid conflicts.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:3:9 lint/correctness/noVueDuplicateKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Duplicate key count found in Vue component.
1 │ export default {
2 │ computed: {
> 3 │ count() {
│ ^^^^^
4 │ return this.value * 2;
5 │ }
ℹ Key count is also defined here.
6 │ },
7 │ methods: {
> 8 │ count() {
│ ^^^^^
9 │ this.value++;
10 │ }
ℹ Keys defined in different Vue component options (props, data, methods, computed) can conflict when accessed in the template. Rename the key to avoid conflicts.
code-block.vue:3:9 lint/nursery/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Key $el is reserved in Vue.
1 │ export default {
2 │ data: {
> 3 │ $el: '',
│ ^^^
4 │ },
5 │ };
ℹ Rename the key to avoid conflicts with Vue reserved keys.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:3:9 lint/correctness/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Key $el is reserved in Vue.
1 │ export default {
2 │ data: {
> 3 │ $el: '',
│ ^^^
4 │ },
5 │ };
ℹ Rename the key to avoid conflicts with Vue reserved keys.
code-block.vue:4:13 lint/nursery/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Keys starting with an underscore are reserved in Vue.
2 │ data() {
3 │ return {
> 4 │ _foo: 'bar',
│ ^^^^
5 │ };
6 │ },
ℹ Rename the key to avoid conflicts with Vue reserved keys.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:4:13 lint/correctness/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Keys starting with an underscore are reserved in Vue.
2 │ data() {
3 │ return {
> 4 │ _foo: 'bar',
│ ^^^^
5 │ };
6 │ },
ℹ Rename the key to avoid conflicts with Vue reserved keys.
code-block.vue:3:9 lint/nursery/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Key $data is reserved in Vue.
1 │ export default {
2 │ computed: {
> 3 │ $data() {
│ ^^^^^
4 │ return this.someData;
5 │ },
ℹ Rename the key to avoid conflicts with Vue reserved keys.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:3:9 lint/correctness/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Key $data is reserved in Vue.
1 │ export default {
2 │ computed: {
> 3 │ $data() {
│ ^^^^^
4 │ return this.someData;
5 │ },
ℹ Rename the key to avoid conflicts with Vue reserved keys.
code-block.vue:3:9 lint/nursery/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Key $emit is reserved in Vue.
1 │ export default {
2 │ methods: {
> 3 │ $emit() {
│ ^^^^^
4 │ // This conflicts with Vue's built-in $emit
5 │ },
ℹ Rename the key to avoid conflicts with Vue reserved keys.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:3:9 lint/correctness/noVueReservedKeys ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Key $emit is reserved in Vue.
1 │ export default {
2 │ methods: {
> 3 │ $emit() {
│ ^^^^^
4 │ // This conflicts with Vue's built-in $emit
5 │ },
ℹ Rename the key to avoid conflicts with Vue reserved keys.
code-block.vue:2:5 lint/nursery/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ ref is a reserved attribute and cannot be used as props.
1 │ defineProps({
> 2 │ ref: String,
│ ^^^
3 │ });
4 │
ℹ Rename the prop to avoid possible conflicts.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:2:5 lint/correctness/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ ref is a reserved attribute and cannot be used as props.
1 │ defineProps({
> 2 │ ref: String,
│ ^^^
3 │ });
4 │
ℹ Rename the prop to avoid possible conflicts.
code-block.js:5:9 lint/nursery/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ key is a reserved attribute and cannot be used as props.
3 │ export default defineComponent({
4 │ props: [
> 5 │ 'key',
│ ^^^^^
6 │ ]
7 │ });
ℹ Rename the prop to avoid possible conflicts.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:5:9 lint/correctness/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ key is a reserved attribute and cannot be used as props.
3 │ export default defineComponent({
4 │ props: [
> 5 │ 'key',
│ ^^^^^
6 │ ]
7 │ });
ℹ Rename the prop to avoid possible conflicts.
code-block.vue:2:5 lint/nursery/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ ref is a reserved attribute and cannot be used as props.
1 │ defineProps<{
> 2 │ ref: string,
│ ^^^
3 │ }>();
4 │
ℹ Rename the prop to avoid possible conflicts.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:2:5 lint/correctness/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ ref is a reserved attribute and cannot be used as props.
1 │ defineProps<{
> 2 │ ref: string,
│ ^^^
3 │ }>();
4 │
ℹ Rename the prop to avoid possible conflicts.
code-block.vue:3:9 lint/nursery/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ key is a reserved attribute and cannot be used as props.
1 │ export default {
2 │ props: {
> 3 │ key: String,
│ ^^^
4 │ }
5 │ };
ℹ Rename the prop to avoid possible conflicts.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.vue:3:9 lint/correctness/noVueReservedProps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ key is a reserved attribute and cannot be used as props.
1 │ export default {
2 │ props: {
> 3 │ key: String,
│ ^^^
4 │ }
5 │ };
ℹ Rename the prop to avoid possible conflicts.
code-block.js:2:9 lint/nursery/noVueSetupPropsReactivityLoss ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ Destructuring `props` in the `setup` function parameters loses reactivity.
1 │ export default {
> 2 │ setup({ count }) {
│ ^^^^^^^^^
3 │ return () => h('div', count);
4 │ }
ℹ To preserve reactivity, access props as properties: `props.propertyName`.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:9 lint/correctness/noVueSetupPropsReactivityLoss ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Destructuring `props` in the `setup` function parameters loses reactivity.
1 │ export default {
> 2 │ setup({ count }) {
│ ^^^^^^^^^
3 │ return () => h('div', count);
4 │ }
ℹ To preserve reactivity, access props as properties: `props.propertyName`.
code-block.js:1:14 lint/nursery/useConsistentArrowReturn FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ The body of this arrow function contains a single return statement.
> 1 │ const bar = () => {
│ ^^^^^^^
> 2 │ return {
> 3 │ bar: {
> 4 │ foo: 1,
> 5 │ bar: 2,
> 6 │ }
> 7 │ };
> 8 │ };
│ ^
9 │
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
ℹ Safe fix: Remove the return statement.
1 │ - ·const·bar·=·()·=>·{
2 │ - ·····return·{
1 │ + ·const·bar·=·()·=>·({
3 2 │ bar: {
4 3 │ foo: 1,
5 4 │ bar: 2,
6 5 │ }
7 │ - ·····};
8 │ - ·};
6 │ + ·····});
9 7 │
code-block.js:1:14 lint/style/useConsistentArrowReturn FIXABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ The body of this arrow function contains a single return statement.
> 1 │ const bar = () => {
│ ^^^^^^^
> 2 │ return {
> 3 │ bar: {
> 4 │ foo: 1,
> 5 │ bar: 2,
> 6 │ }
> 7 │ };
> 8 │ };
│ ^
9 │
ℹ Safe fix: Remove the return statement.
1 │ - ·const·bar·=·()·=>·{
2 │ - ·····return·{
1 │ + ·const·bar·=·()·=>·({
3 2 │ bar: {
4 3 │ foo: 1,
5 4 │ bar: 2,
6 5 │ }
7 │ - ·····};
8 │ - ·};
6 │ + ·····});
9 7 │
code-block.graphql:2:10 lint/nursery/useDeprecatedDate ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ℹ The directive `@deprecated` should have a `deletionDate` argument.
1 │ query {
> 2 │ member @deprecated(reason: "Use `members` instead") {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3 │ id
4 │ }
ℹ Add a `deletionDate` argument to the directive.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.graphql:2:10 lint/suspicious/useDeprecatedDate ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ The directive `@deprecated` should have a `deletionDate` argument.
1 │ query {
> 2 │ member @deprecated(reason: "Use `members` instead") {
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3 │ id
4 │ }
ℹ Add a `deletionDate` argument to the directive.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that no value is returned (void)
> 2 │ function test() {
│ ^^^^^^^^^^^^^
3 │ return;
4 │ }
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that no value is returned (void)
> 2 │ function test() {
│ ^^^^^^^^^^^^^
3 │ return;
4 │ }
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:10 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that a number is returned
> 2 │ var fn = function () {
│ ^^^^^^^^^^^^^
> 3 │ return 1;
> 4 │ };
│ ^
5 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:10 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that a number is returned
> 2 │ var fn = function () {
│ ^^^^^^^^^^^^^
> 3 │ return 1;
> 4 │ };
│ ^
5 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:15 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that a string is returned
> 2 │ var arrowFn = () => 'test';
│ ^^^^^^^^^^^^
3 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:15 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that a string is returned
> 2 │ var arrowFn = () => 'test';
│ ^^^^^^^^^^^^
3 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:3:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ class Test {
2 │ // Should indicate that no value is returned (void)
> 3 │ method() {
│ ^^^^^^^^^^
> 4 │ return;
> 5 │ }
│ ^
6 │ }
7 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:3:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ class Test {
2 │ // Should indicate that no value is returned (void)
> 3 │ method() {
│ ^^^^^^^^^^
> 4 │ return;
> 5 │ }
│ ^
6 │ }
7 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that no value is returned (void)
> 2 │ function test(a: number) {
│ ^^^^^^^^^^^^^
3 │ a += 1;
4 │ }
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should indicate that no value is returned (void)
> 2 │ function test(a: number) {
│ ^^^^^^^^^^^^^
3 │ a += 1;
4 │ }
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:12 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should use const assertions
> 2 │ var func = (value: number) => ({ type: 'X', value }) as any;
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:12 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // Should use const assertions
> 2 │ var func = (value: number) => ({ type: 'X', value }) as any;
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:5:7 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The variable doesn't have a type defined.
3 │ return "Not inline";
4 │ }
> 5 │ const direct = fn();
│ ^^^^^^
6 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a type to the variable.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:5:7 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The variable doesn't have a type defined.
3 │ return "Not inline";
4 │ }
> 5 │ const direct = fn();
│ ^^^^^^
6 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a type to the variable.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:5:7 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The variable doesn't have a type defined.
3 │ return "Not inline";
4 │ }
> 5 │ const nested = { result: fn() };
│ ^^^^^^
6 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a type to the variable.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:5:7 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The variable doesn't have a type defined.
3 │ return "Not inline";
4 │ }
> 5 │ const nested = { result: fn() };
│ ^^^^^^
6 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a type to the variable.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:5 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The variable doesn't have a type defined.
1 │ // let bindings of null and undefined are usually overwritten by other code
> 2 │ let foo = null;
│ ^^^
3 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a type to the variable.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:5 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The variable doesn't have a type defined.
1 │ // let bindings of null and undefined are usually overwritten by other code
> 2 │ let foo = null;
│ ^^^
3 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a type to the variable.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:1:21 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
> 1 │ var arrowFn = () => () => {};
│ ^^^^^^^^
2 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:1:21 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
> 1 │ var arrowFn = () => () => {};
│ ^^^^^^^^
2 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:10 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ var arrowFn = () => {
> 2 │ return () => { };
│ ^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:10 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ var arrowFn = () => {
> 2 │ return () => { };
│ ^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // A function has multiple statements in the body
> 2 │ function f() {
│ ^^^^^^^^^^
3 │ if (x) {
4 │ return 0;
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // A function has multiple statements in the body
> 2 │ function f() {
│ ^^^^^^^^^^
3 │ if (x) {
4 │ return 0;
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // A function has multiple statements in the body
> 2 │ function f() {
│ ^^^^^^^^^^
3 │ let str = "test";
4 │ return (): string => {
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // A function has multiple statements in the body
> 2 │ function f() {
│ ^^^^^^^^^^
3 │ let str = "test";
4 │ return (): string => {
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // A function has multiple statements in the body
> 2 │ function f() {
│ ^^^^^^^^^^
3 │ let str = "test";
4 │ }
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:1 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function.
1 │ // A function has multiple statements in the body
> 2 │ function f() {
│ ^^^^^^^^^^
3 │ let str = "test";
4 │ }
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ interface Array<Type> {
> 2 │ method();
│ ^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ interface Array<Type> {
> 2 │ method();
│ ^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ type MyObject = {
> 2 │ (input: string);
│ ^^^^^^^^^^^^^^^^
3 │ propertyName: string;
4 │ };
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ type MyObject = {
> 2 │ (input: string);
│ ^^^^^^^^^^^^^^^^
3 │ propertyName: string;
4 │ };
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ abstract class MyClass {
> 2 │ public abstract method();
│ ^^^^^^^^^^^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ abstract class MyClass {
> 2 │ public abstract method();
│ ^^^^^^^^^^^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ abstract class P<T> {
> 2 │ abstract get poke();
│ ^^^^^^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on member.
1 │ abstract class P<T> {
> 2 │ abstract get poke();
│ ^^^^^^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the member.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function declaration.
1 │ declare namespace myLib {
> 2 │ function makeGreeting(s: string);
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function declaration.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:3 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function declaration.
1 │ declare namespace myLib {
> 2 │ function makeGreeting(s: string);
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function declaration.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:18 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function declaration.
1 │ declare module "foo" {
> 2 │ export default function bar();
│ ^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function declaration.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:2:18 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Missing return type on function declaration.
1 │ declare module "foo" {
> 2 │ export default function bar();
│ ^^^^^^^^^^^^^^^
3 │ }
4 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Add a return type to the function declaration.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:1:21 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The parameter has an any type.
> 1 │ var arrowFn = (arg: any): string => `test ${arg}`;
│ ^^^
2 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Replace any with unknown or a more specific type.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.ts:1:21 lint/nursery/useExplicitType ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ The parameter has an any type.
> 1 │ var arrowFn = (arg: any): string => `test ${arg}`;
│ ^^^
2 │
ℹ Declaring the type makes the code self-documented and can speed up TypeScript type checking.
ℹ Replace any with unknown or a more specific type.
ℹ This rule is still being actively worked on, so it may be missing features or have rough edges. Visit https://github.com/biomejs/biome/issues/2017 for more information or to report possible bugs.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:13 lint/nursery/useMaxParams ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Function has 8 parameters, but only 4 are allowed.
> 1 │ function foo(a, b, c, d, e, f, g, h) {
│ ^^^^^^^^^^^^^^^^^^^^^^^^
2 │ // too many parameters
3 │ }
ℹ Functions with many parameters are hard to read and maintain.
ℹ Consider using an options object, splitting into smaller functions, or grouping related parameters.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:13 lint/complexity/useMaxParams ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Function has 8 parameters, but only 4 are allowed.
> 1 │ function foo(a, b, c, d, e, f, g, h) {
│ ^^^^^^^^^^^^^^^^^^^^^^^^
2 │ // too many parameters
3 │ }
ℹ Functions with many parameters are hard to read and maintain.
ℹ Consider using an options object, splitting into smaller functions, or grouping related parameters.
code-block.js:1:13 lint/nursery/useMaxParams ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Function has 8 parameters, but only 4 are allowed.
> 1 │ const bar = (a, b, c, d, e, f, g, h) => {
│ ^^^^^^^^^^^^^^^^^^^^^^^^
2 │ // too many parameters
3 │ }
ℹ Functions with many parameters are hard to read and maintain.
ℹ Consider using an options object, splitting into smaller functions, or grouping related parameters.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:1:13 lint/complexity/useMaxParams ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Function has 8 parameters, but only 4 are allowed.
> 1 │ const bar = (a, b, c, d, e, f, g, h) => {
│ ^^^^^^^^^^^^^^^^^^^^^^^^
2 │ // too many parameters
3 │ }
ℹ Functions with many parameters are hard to read and maintain.
ℹ Consider using an options object, splitting into smaller functions, or grouping related parameters.
code-block.js:2:11 lint/nursery/useMaxParams ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Function has 8 parameters, but only 4 are allowed.
1 │ class Baz {
> 2 │ method(a, b, c, d, e, f, g, h) {
│ ^^^^^^^^^^^^^^^^^^^^^^^^
3 │ // too many parameters
4 │ }
ℹ Functions with many parameters are hard to read and maintain.
ℹ Consider using an options object, splitting into smaller functions, or grouping related parameters.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:11 lint/complexity/useMaxParams ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠ Function has 8 parameters, but only 4 are allowed.
1 │ class Baz {
> 2 │ method(a, b, c, d, e, f, g, h) {
│ ^^^^^^^^^^^^^^^^^^^^^^^^
3 │ // too many parameters
4 │ }
ℹ Functions with many parameters are hard to read and maintain.
ℹ Consider using an options object, splitting into smaller functions, or grouping related parameters.
code-block.js:4:17 lint/nursery/useQwikMethodUsage ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Qwik hook detected outside of an allowed scope.
3 │ export const Counter = () => {
> 4 │ const count = useSignal(0);
│ ^^^^^^^^^^^^
5 │ };
6 │
ℹ Qwik's reactive hooks (functions starting with use* followed by uppercase letter) must be:
- Used exclusively within `component$` functions
- Or encapsulated within other valid Qwik hooks
ℹ Check the Qwik documentation.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:4:17 lint/correctness/useQwikMethodUsage ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Qwik hook detected outside of an allowed scope.
3 │ export const Counter = () => {
> 4 │ const count = useSignal(0);
│ ^^^^^^^^^^^^
5 │ };
6 │
ℹ Qwik's reactive hooks (functions starting with use* followed by uppercase letter) must be:
- Used exclusively within `component$` functions
- Or encapsulated within other valid Qwik hooks
ℹ Check the Qwik documentation.
code-block.js:2:21 lint/nursery/useQwikValidLexicalScope ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Non-serializable expression must be wrapped with $(...)
1 │ // Arrow function assigned without wrapping it in $(...)
> 2 │ const handleClick = () => {
│ ^^^^^^^
> 3 │ console.log("clicked");
> 4 │ };
│ ^
5 │
ℹ Qwik requires serializable closures for:
- Resumability (pausing/resuming execution)
- Code splitting (lazy loading components)
- Optimized rehydration (client-side continuation)
ℹ Wrap the expression with $(...) to make it serializable. Learn more: Qwik documentation.
ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.
code-block.js:2:21 lint/correctness/useQwikValidLexicalScope ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ Non-serializable expression must be wrapped with $(...)
1 │ // Arrow function assigned without wrapping it in $(...)
> 2 │ const handleClick = () => {
│ ^^^^^^^
> 3 │ console.log("clicked");
> 4 │ };
│ ^
5 │
ℹ Qwik requires serializable closures for:
- Resumability (pausing/resuming execution)
- Code splitting (lazy loading components)
- Optimized rehydration (client-side continuation)
ℹ Wrap the expression with $(...) to make it serializable. Learn more: Qwik documentation.
\n \t![\"alt\"](\"src\")
\n \t![\"Picture](\"bar\")
\n
\n ```\n\n"
},
"noSvgWithoutTitle": {
"deprecated": false,
@@ -930,7 +930,7 @@ export function GET() {
"link": "https://biomejs.dev/linter/rules/no-svg-without-title",
"recommended": true,
"fixKind": "none",
- "docs": " Enforces the usage of the `title` element for the `svg` element.\n\n It is not possible to specify the `alt` attribute for the `svg` as for the `img`.\n To make svg accessible, the following methods are available:\n - provide the `title` element as the first child to `svg`\n - provide `role=\"img\"` and `aria-label` or `aria-labelledby` to `svg`\n\n ## Examples\n\n ### Invalid\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ### Valid\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n\n ## Accessibility guidelines\n [Document Structure – SVG 1.1 (Second Edition)](https://www.w3.org/TR/SVG11/struct.html#DescriptionAndTitleElements)\n [ARIA: img role - Accessibility | MDN](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/img_role)\n [Accessible SVGs | CSS-Tricks - CSS-Tricks](https://css-tricks.com/accessible-svgs/)\n [Contextually Marking up accessible images and SVGs | scottohara.me](https://www.scottohara.me/blog/2019/05/22/contextual-images-svgs-and-a11y.html)\n [Accessible SVGs](https://www.unimelb.edu.au/accessibility/techniques/accessible-svgs)\n\n"
+ "docs": " Enforces the usage of the `title` element for the `svg` element.\n\n It is not possible to specify the `alt` attribute for the `svg` as for the `img`.\n To make svg accessible, the following methods are available:\n - provide the `title` element as the first child to `svg`\n - provide `role=\"img\"` and `aria-label` or `aria-labelledby` to `svg`\n\n ## Examples\n\n ### Invalid\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ```html,expect_diagnostic\n \n ```\n\n ### Valid\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n ```html\n \n ```\n\n\n ## Accessibility guidelines\n [Document Structure – SVG 1.1 (Second Edition)](https://www.w3.org/TR/SVG11/struct.html#DescriptionAndTitleElements)\n [ARIA: img role - Accessibility | MDN](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/img_role)\n [Accessible SVGs | CSS-Tricks - CSS-Tricks](https://css-tricks.com/accessible-svgs/)\n [Contextually Marking up accessible images and SVGs | scottohara.me](https://www.scottohara.me/blog/2019/05/22/contextual-images-svgs-and-a11y.html)\n [Accessible SVGs](https://www.unimelb.edu.au/accessibility/techniques/accessible-svgs)\n\n"
},
"useAltText": {
"deprecated": false,
@@ -1768,6 +1768,15 @@ export function GET() {
],
"docs": " Disallow unnecessary `catch` clauses.\n\n A `catch` clause that only rethrows the original error is redundant,\n and has no effect on the runtime behavior of the program.\n These redundant clauses can be a source of confusion and code bloat,\n so it’s better to disallow these unnecessary `catch` clauses.\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n try {\n doSomething();\n } catch(e) {\n throw e;\n }\n ```\n ```js,expect_diagnostic\n try {\n doSomething();\n } catch(e) {\n throw e;\n } finally {\n doCleanUp();\n }\n ```\n ### Valid\n\n ```js\n try {\n doSomething();\n } catch(e) {\n doSomethingWhenCatch();\n throw e;\n }\n ```\n\n ```js\n try {\n doSomething();\n } catch(e) {\n handleError(e);\n }\n ```\n\n ```js\n try {\n doSomething();\n } finally {\n doCleanUp();\n }\n ```\n\n"
},
+ "noUselessCatchBinding": {
+ "deprecated": false,
+ "version": "2.2.3",
+ "name": "noUselessCatchBinding",
+ "link": "https://biomejs.dev/linter/rules/no-useless-catch-binding",
+ "recommended": false,
+ "fixKind": "unsafe",
+ "docs": " Disallow unused catch bindings.\n\n This rule disallows unnecessary catch bindings in accordance with ECMAScript 2019.\n See also: the ECMAScript 2019 “optional catch binding” feature in the language specification.\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n try {\n // Do something\n } catch (unused) {}\n ```\n\n ```js,expect_diagnostic\n try {\n // Do something\n } catch ({ unused }) {}\n ```\n\n ```js,expect_diagnostic\n try {\n // Do something\n } catch ({ unused1, unused2 }) {}\n ```\n\n ### Valid\n\n ```js\n try {\n // Do something\n } catch (used) {\n console.error(used);\n }\n ```\n\n ```js\n try {\n // Do something\n } catch ({ used }) {\n console.error(used);\n }\n ```\n\n ```js\n try {\n // Do something\n } catch ({ used, unused }) {\n console.error(used);\n }\n ```\n\n ```js\n try {\n // Do something\n } catch {}\n ```\n\n"
+ },
"noUselessConstructor": {
"deprecated": false,
"version": "1.0.0",
@@ -1945,6 +1954,23 @@ export function GET() {
],
"docs": " Disallow useless `this` aliasing.\n\n Arrow functions inherits `this` from their enclosing scope;\n this makes `this` aliasing useless in this situation.\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n class A {\n method() {\n const self = this;\n return () => {\n return self;\n }\n }\n }\n ```\n\n ### Valid\n\n ```js\n class A {\n method() {\n const self = this;\n return function() {\n this.g();\n return self;\n }\n }\n }\n ```\n\n"
},
+ "noUselessUndefined": {
+ "deprecated": false,
+ "version": "2.0.0",
+ "name": "noUselessUndefined",
+ "link": "https://biomejs.dev/linter/rules/no-useless-undefined",
+ "recommended": false,
+ "fixKind": "safe",
+ "sources": [
+ {
+ "kind": "sameLogic",
+ "source": {
+ "eslintUnicorn": "no-useless-undefined"
+ }
+ }
+ ],
+ "docs": " Disallow the use of useless `undefined`.\n\n `undefined` is the default value for new variables, parameters, return statements, etc., so specifying it doesn't make any difference.\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n let foo = undefined;\n ```\n\n ```js,expect_diagnostic\n const {foo = undefined} = bar;\n ```\n\n ```js,expect_diagnostic\n function foo() {\n return undefined;\n }\n ```\n\n ```js,expect_diagnostic\n function* foo() {\n yield undefined;\n }\n ```\n\n ```js,expect_diagnostic\n function foo(bar = undefined) {}\n ```\n\n ```js,expect_diagnostic\n function foo({bar = undefined}) {}\n ```\n\n ### Valid\n\n ```js\n let foo;\n const {foo} = bar;\n function foo() {\n return;\n }\n function* foo() {\n yield;\n }\n function foo(bar) {}\n function foo({bar}) {}\n foo();\n ```\n\n"
+ },
"noUselessUndefinedInitialization": {
"deprecated": false,
"version": "1.7.2",
@@ -2088,6 +2114,35 @@ export function GET() {
],
"docs": " Enforce the usage of a literal access to properties over computed property access.\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n a.b[\"c\"];\n ```\n\n ```js,expect_diagnostic\n a.c[`d`]\n ```\n\n ```js,expect_diagnostic\n a.c[`d`] = \"something\"\n ```\n\n ```js,expect_diagnostic\n a = {\n \t['b']: d\n }\n ```\n\n ### Valid\n\n ```js\n a[\"c\" + \"d\"];\n a[d.c];\n ```\n\n"
},
+ "useMaxParams": {
+ "deprecated": false,
+ "version": "2.2.0",
+ "name": "useMaxParams",
+ "link": "https://biomejs.dev/linter/rules/use-max-params",
+ "recommended": false,
+ "fixKind": "none",
+ "sources": [
+ {
+ "kind": "sameLogic",
+ "source": {
+ "eslint": "max-params"
+ }
+ },
+ {
+ "kind": "sameLogic",
+ "source": {
+ "clippy": "too_many_arguments"
+ }
+ },
+ {
+ "kind": "sameLogic",
+ "source": {
+ "eslintTypeScript": "max-params"
+ }
+ }
+ ],
+ "docs": " Enforce a maximum number of parameters in function definitions.\n\n Functions that take numerous parameters can be difficult to read and write\n because it requires the memorization of what each parameter is, its type,\n and the order they should appear in.\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n function foo(a, b, c, d, e, f, g, h) {\n // too many parameters\n }\n ```\n\n ```js,expect_diagnostic\n const bar = (a, b, c, d, e, f, g, h) => {\n // too many parameters\n }\n ```\n\n ```js,expect_diagnostic\n class Baz {\n method(a, b, c, d, e, f, g, h) {\n // too many parameters\n }\n }\n ```\n\n ### Valid\n\n ```js\n function foo(a, b, c) {\n // within limit\n }\n ```\n\n ```js\n const bar = (a, b, c) => {\n // within limit\n }\n ```\n\n ```js\n class Baz {\n method(a, b, c) {\n // within limit\n }\n }\n ```\n\n ## Options\n\n ### max\n\n The maximum number of parameters allowed (default: 4).\n\n"
+ },
"useNumericLiterals": {
"deprecated": false,
"version": "1.0.0",
@@ -2392,6 +2447,23 @@ export function GET() {
],
"docs": " Disallow the use of variables, function parameters, classes, and enums before their declaration\n\n JavaScript doesn't allow the use of block-scoped variables (`let`, `const`), function parameters, and classes before their declaration.\n Similarly TypeScript doesn't allow the use of enums before their declaration.\n A `ReferenceError` will be thrown with any attempt to access the variable or the parameter before its declaration.\n\n The rule also reports the use of variables declared with `var` before their declarations.\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n function f() {\n console.log(x);\n let x;\n }\n ```\n\n ```js,expect_diagnostic\n function f() {\n console.log(x);\n var x = 0;\n }\n ```\n\n ```js,expect_diagnostic\n function f(a = b, b = 0) {}\n ```\n\n ```js,expect_diagnostic\n new C();\n class C {}\n ```\n\n ### Valid\n\n ```js\n f();\n function f() {}\n ```\n\n ```js\n // An export can reference a variable before its declaration.\n export { CONSTANT };\n const CONSTANT = 0;\n ```\n\n ```js\n function f() { return CONSTANT; }\n const CONSTANT = 0;\n ```\n\n ```ts\n function f() {\n new C();\n }\n let c: C;\n class C {}\n ```\n"
},
+ "noNextAsyncClientComponent": {
+ "deprecated": false,
+ "version": "2.2.0",
+ "name": "noNextAsyncClientComponent",
+ "link": "https://biomejs.dev/linter/rules/no-next-async-client-component",
+ "recommended": false,
+ "fixKind": "none",
+ "sources": [
+ {
+ "kind": "sameLogic",
+ "source": {
+ "eslintNext": "no-async-client-component"
+ }
+ }
+ ],
+ "docs": " Prevent client components from being async functions.\n\n This rule prevents the use of async functions for client components in Next.js applications.\n Client components marked with \"use client\" directive should not be async as this can cause\n hydration mismatches, break component rendering lifecycle, and lead to unexpected behavior\n with React's concurrent features.\n\n ## Examples\n\n ### Invalid\n\n ```jsx,expect_diagnostic\n \"use client\";\n\n export default async function MyComponent() {\n return Hello
;\n }\n ```\n\n ### Valid\n\n ```jsx\n \"use client\";\n\n export default function MyComponent() {\n return Hello
;\n }\n ```\n\n ```jsx\n // No \"use client\" directive - server component can be async\n export default async function ServerComponent() {\n const data = await fetch('/api/data');\n return {data}
;\n }\n ```\n\n"
+ },
"noNodejsModules": {
"deprecated": false,
"version": "1.5.0",
@@ -2648,6 +2720,23 @@ export function GET() {
],
"docs": " Ensures the `super()` constructor is called exactly once on every code path in a class constructor before `this` is accessed if the class has a superclass\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n class A extends B {\n constructor() {}\n }\n ```\n\n ```js,expect_diagnostic\n class A extends B {\n constructor(value) {\n this.prop = value;\n super();\n }\n }\n ```\n\n ```js,expect_diagnostic\n class A extends B {\n constructor(cond) {\n if(cond) {\n super();\n }\n }\n }\n ```\n\n ### Valid\n\n ```js\n export default class A extends B {\n constructor() {\n super();\n }\n }\n ```\n\n ```js\n export class A {\n constructor() {}\n }\n ```\n\n"
},
+ "noUnresolvedImports": {
+ "deprecated": false,
+ "version": "2.0.0",
+ "name": "noUnresolvedImports",
+ "link": "https://biomejs.dev/linter/rules/no-unresolved-imports",
+ "recommended": false,
+ "fixKind": "none",
+ "sources": [
+ {
+ "kind": "inspired",
+ "source": {
+ "eslintImport": "named"
+ }
+ }
+ ],
+ "docs": " Warn when importing non-existing exports.\n\n Importing a non-existing export is an error at runtime or build time.\n Biome can detect such incorrect imports and report errors for them.\n\n Note that if you use TypeScript, you probably don't want to use this\n rule, since TypeScript already performs such checks for you.\n\n ## Known Limitations\n\n * This rule does not validate imports through dynamic `import()`\n expressions or CommonJS `require()` calls.\n\n ## Examples\n\n ### Invalid\n\n ```js,file=foo.js\n export function foo() {};\n ```\n\n ```js,expect_diagnostic,file=bar.js\n // Attempt to import symbol with a typo:\n import { fooo } from \"./foo.js\";\n ```\n\n ### Valid\n\n ```js,file=foo.js\n export function foo() {};\n ```\n\n ```js,file=bar.js\n // Fixed typo:\n import { foo } from \"./foo.js\";\n ```\n"
+ },
"noUnsafeFinally": {
"deprecated": false,
"version": "1.0.0",
@@ -2771,91 +2860,182 @@ export function GET() {
],
"docs": " Disallow unused variables.\n\n There is an exception to this rule: variables that start with underscore, e.g. `let _something;`.\n\n The pattern of having an underscore as a prefix of a variable is a very diffuse\n pattern among programmers, and Biome follows it.\n\n This rule won't report unused imports.\n If you want to report unused imports,\n enable [noUnusedImports](https://biomejs.dev/linter/rules/no-unused-imports/).\n\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n let a = 4;\n a++;\n ```\n\n ```js,expect_diagnostic\n function foo() {}\n ```\n\n ```js,expect_diagnostic\n function foo() {\n foo();\n }\n ```\n\n ```js,expect_diagnostic\n const foo = () => {\n foo();\n };\n ```\n\n ```ts,expect_diagnostic\n export function fHello
;\n }\n ```\n\n ### Valid\n\n ```jsx\n \"use client\";\n\n export default function MyComponent() {\n return Hello
;\n }\n ```\n\n ```jsx\n // No \"use client\" directive - server component can be async\n export default async function ServerComponent() {\n const data = await fetch('/api/data');\n return {data}
;\n }\n ```\n\n"
- },
"noParametersOnlyUsedInRecursion": {
"deprecated": false,
"version": "2.3.3",
@@ -3239,29 +3345,6 @@ export function GET() {
],
"docs": " Disallow the use of the deprecated `__proto__` object property.\n\n [`Object.prototype.__proto__`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/proto)\n is a special accessor used to get or set the prototype of an object. \\\n\n However, it has been **deprecated** since _ECMAScript 2009_, being much slower and much less reliable than its\n modern counterparts [`Object.getPrototypeOf()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getPrototypeOf)\n and [`Object.setPrototypeOf()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf).\n\n Since it is a regular property on `Object.prototype`,\n `__proto__` **will not work** on `null`-prototype objects that do not extend from `Object.prototype`\n nor ones having created their own `__proto__` properties via `Object.defineProperty`.\n\n As such, this rule encourages the use of `Object.getPrototypeOf()` and `Object.setPrototypeOf()`\n in lieu of directly accessing `__proto__`.\n\n :::info\n Note that this does **not** check for the use of `__proto__` inside object literal definitions\n to set a newly created object's prototype, \\\n which is standard practice and well-optimized in modern browsers.\n :::\n\n ## Examples\n\n ### Invalid\n\n ```js,expect_diagnostic\n obj.__proto__ = a;\n ```\n\n ```js,expect_diagnostic\n const b = obj.__proto__;\n ```\n\n ### Valid\n\n ```js\n const a = Object.getPrototypeOf(obj);\n ```\n\n ```js\n Object.setPrototypeOf(obj, b);\n ```\n\n ```js\n // This sets `foo`'s prototype to `null` (similar to `Object.create`), and is\n // well-defined across browsers.\n const foo = {\n __proto__: null,\n a: 1,\n }\n ```\n"
},
- "noReactForwardRef": {
- "deprecated": false,
- "version": "2.2.5",
- "name": "noReactForwardRef",
- "link": "https://biomejs.dev/linter/rules/no-react-forward-ref",
- "recommended": false,
- "fixKind": "unsafe",
- "sources": [
- {
- "kind": "sameLogic",
- "source": {
- "eslintReactX": "no-forward-ref"
- }
- },
- {
- "kind": "sameLogic",
- "source": {
- "eslintReactXyz": "no-forward-ref"
- }
- }
- ],
- "docs": " Replaces usages of `forwardRef` with passing `ref` as a prop.\n\n In React 19, `forwardRef` is no longer necessary. Pass `ref` as a prop instead.\n This rule detects the usage of the `forwardRef` API, and it suggests using the prop `ref`\n instead.\n See [the official blog post](https://react.dev/blog/2024/12/05/react-19#ref-as-a-prop) for details.\n\n This rule should be disabled if you are working with React 18 or earlier.\n\n ## Examples\n\n ### Invalid\n\n ```jsx,expect_diagnostic\n import { forwardRef } from \"react\";\n\n const MyInput = forwardRef(function MyInput(props, ref) {\n return ;\n });\n ```\n\n ```jsx,expect_diagnostic\n import { forwardRef } from \"react\";\n\n const MyInput = forwardRef((props, ref) => {\n return ;\n });\n ```\n\n ### Valid\n\n ```jsx\n function MyInput({ ref, ...props }) {\n return ;\n }\n ```\n\n ```jsx\n const MyInput = ({ ref, ...props }) => {\n return ;\n }\n ```\n\n"
- },
"noRedundantDefaultExport": {
"deprecated": false,
"version": "2.3.14",
@@ -3414,49 +3497,6 @@ export function GET() {
],
"docs": " Disallow unnecessary type-based conditions that can be statically determined as redundant.\n\n This rule detects if expressions inside conditions are statically inferrable and yield\n falsy or truthy values that don't change during the life cycle of the program.\n\n ## Examples\n\n ### Invalid\n\n ```ts\n function head\n \n
\n )\n }\n ```\n\n ### Valid\n\n ```jsx,ignore\n // pages/_document.jsx\n import { Html, Head, Main, NextScript } from 'next/document'\n import Script from 'next/script'\n\n export default function Document() {\n return (\n \n Hello World
\n ```\n\n ```jsx,expect_diagnostic\n <>Welcome to our site\n ```\n\n ```jsx,expect_diagnostic\n \n Please enter your name\n \n ```\n\n ### Valid\n\n ```jsx\n {'Hello World'}
\n ```\n\n ```jsx\n <>{'Welcome to our site'}\n ```\n\n ```jsx\n \n {'Please enter your name'}\n \n ```\n\n ```jsx\n {`Hello ${name}`}
\n ```\n\n ## Options\n\n ### `noStrings`\n\n When enabled, the rule will also flag string literals inside JSX expressions and attributes.\n\n > **Default:** `false`\n\n ```json,options\n {\n \"options\": {\n \"noStrings\": true\n }\n }\n ```\n\n ```jsx,expect_diagnostic,use_options\n \n {'Please enter your name'}\n \n ```\n ```jsx,expect_diagnostic,use_options\n Hello
\n ·
\n \n ```\n\n ### `ignoreProps`\n\n When enabled, the rule will ignore string literals used as prop values.\n\n > **Default:** `false`\n\n ```json,options\n {\n \"options\": {\n \"ignoreProps\": true\n }\n }\n ```\n\n ```jsx,use_options\n <>\n Hello World
\n ```\n\n ```jsx,expect_diagnostic\n <>Welcome to our site\n ```\n\n ```jsx,expect_diagnostic\n \n Please enter your name\n \n ```\n\n ### Valid\n\n ```jsx\n {'Hello World'}
\n ```\n\n ```jsx\n <>{'Welcome to our site'}\n ```\n\n ```jsx\n \n {'Please enter your name'}\n \n ```\n\n ```jsx\n {`Hello ${name}`}
\n ```\n\n ## Options\n\n ### `noStrings`\n\n When enabled, the rule will also flag string literals inside JSX expressions and attributes.\n\n > **Default:** `false`\n\n ```json,options\n {\n \"options\": {\n \"noStrings\": true\n }\n }\n ```\n\n ```jsx,expect_diagnostic,use_options\n \n {'Please enter your name'}\n \n ```\n ```jsx,expect_diagnostic,use_options\n Hello
\n ·
\n \n ```\n\n ### `ignoreProps`\n\n When enabled, the rule will ignore string literals used as prop values.\n\n > **Default:** `false`\n\n ```json,options\n {\n \"options\": {\n \"ignoreProps\": true\n }\n }\n ```\n\n ```jsx,use_options\n <>\n