rc-js-util/docs/rc-js-util.arraycontains_1.md

A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.

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## arrayContains() function

Returns true if the item is present in the list (=== equality test).

**Signature:**

```typescript
export declare function arrayContains<TItem>(items: readonly TItem[], item: TItem): boolean;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

items


</td><td>

readonly TItem\[\]


</td><td>


</td></tr>
<tr><td>

item


</td><td>

TItem


</td><td>


</td></tr>
</tbody></table>
**Returns:**

boolean

## Remarks

See [arrayContains()](./rc-js-util.arraycontains_1.md)<!-- -->.