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44 changes: 33 additions & 11 deletions crates/oxc_linter/src/rules/unicorn/prefer_query_selector.rs
Original file line number Diff line number Diff line change
Expand Up @@ -21,15 +21,18 @@ pub struct PreferQuerySelector;
fn get_preferred_identifier_name(ident_name: &str) -> Option<&'static str> {
match ident_name {
"getElementById" => Some("querySelector"),
"getElementsByClassName" | "getElementsByTagName" => Some("querySelectorAll"),
"getElementsByClassName" | "getElementsByTagName" | "getElementsByName" => {
Some("querySelectorAll")
}
_ => None,
}
}

declare_oxc_lint!(
/// ### What it does
///
/// Prefer `.querySelector()` over `.getElementById()`, `.querySelectorAll()` over `.getElementsByClassName()` and `.getElementsByTagName()`.
/// Prefer `.querySelector()` over `.getElementById()`. And prefer `.querySelectorAll()`
/// over `.getElementsByClassName()`, `.getElementsByTagName()`, and `.getElementsByName()`.
///
/// ### Why is this bad?
///
Expand All @@ -44,6 +47,7 @@ declare_oxc_lint!(
/// document.getElementsByClassName('foo bar');
/// document.getElementsByTagName('main');
/// document.getElementsByClassName(fn());
/// document.getElementsByName('foo');
/// ```
///
/// Examples of **correct** code for this rule:
Expand Down Expand Up @@ -128,6 +132,10 @@ impl Rule for PreferQuerySelector {
literal_value.split_whitespace().collect::<Vec<_>>().join(" .")
)
}
"getElementsByName" => {
let inner_quote = if quotes_symbol == '\'' { '"' } else { '\'' };
format!("[name={inner_quote}{literal_value}{inner_quote}]")
}
_ => literal_value.to_string(),
};
let span = property_span.merge(argument_expr.span());
Expand Down Expand Up @@ -207,15 +215,14 @@ fn test() {
console.log(div.getElementsByTagName("div"));
}"#,
"e.getElementById(3)",
// TODO: Get these cases passing.
// r#"document.getElementsByName("foo");"#,
// "document.getElementsByName('foo');",
// "document.getElementsByName(`foo`);",
// "document.getElementsByName(`${'foo'}`);",
// "document.getElementsByName(null);",
// r#"document.getElementsByName("");"#,
// r#"document.getElementsByName(foo + "bar");"#,
// r#"document.getElementsByName("multiple name should be fixable");"#,
r#"document.getElementsByName("foo");"#,
"document.getElementsByName('foo');",
"document.getElementsByName(`foo`);",
"document.getElementsByName(`${'foo'}`);",
"document.getElementsByName(null);",
r#"document.getElementsByName("");"#,
r#"document.getElementsByName(foo + "bar");"#,
r#"document.getElementsByName("multiple name should be fixable");"#,
];

let fix = vec![
Expand All @@ -229,11 +236,26 @@ fn test() {
("document.getElementById(getId());", "document.getElementById(getId());"),
("document.getElementById(`${foo}`);", "document.getElementById(`${foo}`);"),
("document.getElementById(searchInputId);", "document.querySelector(`#${searchInputId}`);"),
(r#"document.getElementsByName("foo");"#, r#"document.querySelectorAll("[name='foo']");"#),
("document.getElementsByName('foo');", r#"document.querySelectorAll('[name="foo"]');"#),
("document.getElementsByName(`foo`);", "document.querySelectorAll(`[name='foo']`);"),
("document.getElementsByName(null);", "document.querySelectorAll(null);"),
(r#"document.getElementsByName("");"#, r#"document.querySelectorAll("");"#),
(
r#"document.getElementsByName("multiple name should be fixable");"#,
r#"document.querySelectorAll("[name='multiple name should be fixable']");"#,
),
// We do not fix these.
(
"document.getElementsByClassName(foo + \"bar\");",
"document.getElementsByClassName(foo + \"bar\");",
),
("document.getElementsByClassName(fn());", "document.getElementsByClassName(fn());"),
("document.getElementsByName(`${'foo'}`);", "document.getElementsByName(`${'foo'}`);"),
(
r#"document.getElementsByName(foo + "bar");"#,
r#"document.getElementsByName(foo + "bar");"#,
),
];

Tester::new(PreferQuerySelector::NAME, PreferQuerySelector::PLUGIN, pass, fail)
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -187,3 +187,59 @@ source: crates/oxc_linter/src/tester.rs
· ──────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName("foo");
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName('foo');
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName(`foo`);
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName(`${'foo'}`);
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName(null);
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName("");
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName(foo + "bar");
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).

⚠ eslint-plugin-unicorn(prefer-query-selector): Prefer `.querySelectorAll()` over `.getElementsByName()`.
╭─[prefer_query_selector.tsx:1:10]
1 │ document.getElementsByName("multiple name should be fixable");
· ─────────────────
╰────
help: It's better to use the same method to query DOM elements. This helps keep consistency and it lends itself to future improvements (e.g. more specific selectors).
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