rc-js-util/docs/rc-js-util.arrayinsertatindex.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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## arrayInsertAtIndex() function

Modifies input array by inserting at given index.

**Signature:**

```typescript
export declare function arrayInsertAtIndex<TItem>(items: TItem[], itemToInsert: TItem, insertAtIndex: number): void;
```

## Parameters

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

Parameter


</th><th>

Type


</th><th>

Description


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

items


</td><td>

TItem\[\]


</td><td>

The array to modify.


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

itemToInsert


</td><td>

TItem


</td><td>

The thing to insert.


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

insertAtIndex


</td><td>

number


</td><td>

Where to insert it. Pun intended.


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

void

## Remarks

See [arrayInsertAtIndex()](./rc-js-util.arrayinsertatindex.md)<!-- -->.