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Clearer NoInfer<Type> example #3336

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19 changes: 13 additions & 6 deletions packages/documentation/copy/en/reference/Utility Types.md
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Original file line number Diff line number Diff line change
Expand Up @@ -466,16 +466,23 @@ identical to `Type`.

##### Example

```ts
```ts twoslash
// @errors: 2345
function laxCreateStreetLight<C extends string>(
colors: C[],
defaultColor?: C,
) { /* ... */ }

laxCreateStreetLight(["red", "yellow", "green"], "blue");
// ^?

function createStreetLight<C extends string>(
colors: C[],
defaultColor?: NoInfer<C>,
) {
// ...
}
) { /* ... */ }

createStreetLight(["red", "yellow", "green"], "red"); // OK
createStreetLight(["red", "yellow", "green"], "blue"); // Error
createStreetLight(["red", "yellow", "green"], "blue");
// ^?
```

## `ThisParameterType<Type>`
Expand Down