rc-js-util/docs/rc-js-util.arraymaprange.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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## arrayMapRange() function

Like [arrayMap()](./rc-js-util.arraymap.md) with integer range as input.

**Signature:**

```typescript
export declare function arrayMapRange<TMapped>(from: number, to: number, callback: (value: number, index: number) => TMapped): TMapped[];
```

## Parameters

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

Parameter


</th><th>

Type


</th><th>

Description


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

from


</td><td>

number


</td><td>

The value to start from (inclusive).


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

to


</td><td>

number


</td><td>

The value to finish with (inclusive).


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

callback


</td><td>

(value: number, index: number) =&gt; TMapped


</td><td>

Called for each value in the range.


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

TMapped\[\]

An array of results from the callback.

## Remarks

Where `from` and `to` are equal a length 1 array is returned, NaN input is not supported.

See [arrayMapRange()](./rc-js-util.arraymaprange.md)<!-- -->.