@stdlib/string/base/base64-to-uint8array/README.md

String manipulation functions.

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# base64ToUint8Array

> Convert a Base64-encoded string to a [Uint8Array][@stdlib/array/uint8].

<!-- Package usage documentation. -->

<section class="usage">

## Usage

<!-- eslint-disable stdlib/no-redeclare -->

```javascript
var base64ToUint8Array = require( '@stdlib/string/base/base64-to-uint8array' );
```

#### base64ToUint8Array( str )

Converts a base64-encoded string to a [Uint8Array][@stdlib/array/uint8].

```javascript
var string2buffer = require( '@stdlib/buffer/from-string' );

var str = string2buffer( 'Hello World!' ).toString( 'base64' );
// returns 'SGVsbG8gV29ybGQh'

var out = base64ToUint8Array( str );
// returns <Uint8Array>[ 72, 101, ... ]
```

</section>

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<section class="notes">

## Notes

-   The function returns `null` when provided a string containing non-ASCII characters.

</section>

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<!-- Package usage examples. -->

<section class="examples">

## Examples

```javascript
var string2buffer = require( '@stdlib/buffer/from-string' );
var base64ToUint8Array = require( '@stdlib/string/base/base64-to-uint8array' );

var buf = string2buffer( 'Hello World!' ).toString( 'base64' );
// returns 'SGVsbG8gV29ybGQh'

var arr = base64ToUint8Array( buf );
// returns <Uint8Array>

buf = string2buffer( 'HELLO WORLD!' ).toString( 'base64' );
// returns 'SEVMTE8gV09STEQh'

arr = base64ToUint8Array( buf );
// returns <Uint8Array>

buf = string2buffer( 'To be, or not to be: that is the question.' ).toString( 'base64' );
// returns 'VG8gYmUsIG9yIG5vdCB0byBiZTogdGhhdCBpcyB0aGUgcXVlc3Rpb24u'

arr = base64ToUint8Array( buf );
// returns <Uint8Array>
```

</section>

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</section>

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[@stdlib/array/uint8]: https://www.npmjs.com/package/@stdlib/array-uint8

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