25 lines
612 B
Markdown
25 lines
612 B
Markdown
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[Home](./index.md) > [@apextoaster/js-utils](./js-utils.md) > [isArray](./js-utils.isarray_1.md)
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## isArray() function
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Wrapper for `Array.isArray` with better readonly type handling.
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<b>Signature:</b>
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```typescript
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export declare function isArray<TVal>(list: TVal | ReadonlyArray<TVal>): list is ReadonlyArray<TVal>;
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```
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## Parameters
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| Parameter | Type | Description |
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| --- | --- | --- |
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| list | TVal \| ReadonlyArray<TVal> | |
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<b>Returns:</b>
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list is ReadonlyArray<TVal>
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