@stdlib/string/next-grapheme-cluster-break/README.md

String manipulation functions.

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# nextGraphemeClusterBreak

> Return the next extended grapheme cluster break in a string after a specified position.

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## Usage

```javascript
var nextGraphemeClusterBreak = require( '@stdlib/string/next-grapheme-cluster-break' );
```

#### nextGraphemeClusterBreak( string\[, fromIndex] )

Returns the next extended grapheme cluster break in a string after a specified position.

```javascript
var out = nextGraphemeClusterBreak( 'last man standing' );
// returns 1
```

By default, the function searches for a grapheme cluster break starting from the first index. To specify an alternative starting search index, provide a `fromIndex` argument.

```javascript
var out = nextGraphemeClusterBreak( 'last man standing', 4 );
// returns 5
```

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## Notes

-   If `string` is an empty string, the function returns `-1` irrespective of `fromIndex`.
-   If an extended grapheme cluster break does not exist after `fromIndex`, the function returns `-1`.
-   Note that `fromIndex` does **not** refer to a visual character position, but to an index in the ordered sequence of [UTF-16][utf-16] code units.

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## Examples

<!-- eslint no-undef: "error" -->

```javascript
var nextGraphemeClusterBreak = require( '@stdlib/string/next-grapheme-cluster-break' );

var out = nextGraphemeClusterBreak( 'last man standing', 4 );
// returns 5

out = nextGraphemeClusterBreak( 'presidential election', 8 );
// returns 9

out = nextGraphemeClusterBreak( 'अनुच्छेद', 1 );
// returns 3

out = nextGraphemeClusterBreak( '🌷', 0 );
// returns -1
```

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## CLI

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### Usage

```text
Usage: next-grapheme-cluster-break [options] [<string>]

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.
         --from index          Starting search position in string. Default: 0.
```

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### Examples

```bash
$ next-grapheme-cluster-break --from=1 अनुच्छेद
3
```

To use as a [standard stream][standard-streams],

```bash
$ echo -n 'अनुच्छेद' | next-grapheme-cluster-break --from=1
3
```

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## See Also

-   <span class="package-name">[`@stdlib/string/num-grapheme-clusters`][@stdlib/string/num-grapheme-clusters]</span><span class="delimiter">: </span><span class="description">return the number of grapheme clusters in a string.</span>
-   <span class="package-name">[`@stdlib/string/prev-grapheme-cluster-break`][@stdlib/string/prev-grapheme-cluster-break]</span><span class="delimiter">: </span><span class="description">return the previous extended grapheme cluster break in a string before a specified position.</span>

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[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams

[utf-16]: https://en.wikipedia.org/wiki/UTF-16

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[@stdlib/string/num-grapheme-clusters]: https://github.com/stdlib-js/string/tree/main/num-grapheme-clusters

[@stdlib/string/prev-grapheme-cluster-break]: https://github.com/stdlib-js/string/tree/main/prev-grapheme-cluster-break

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