npm package: @stdlib/regexp-utf16-unpaired-surrogate
Description: Return a regular expression to match an unpaired UTF-16 surrogate.
Author: The Stdlib Authors
Latest version: 0.2.3

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# reUtf16UnpairedSurrogate

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> [Regular expression][mdn-regexp] to match an unpaired [UTF-16][utf-16] surrogate.

<section class="installation">

## Installation

```bash
npm install @stdlib/regexp-utf16-unpaired-surrogate
```

</section>

<section class="usage">

## Usage

<!-- eslint-disable id-length -->

```javascript
var reUtf16UnpairedSurrogate = require( '@stdlib/regexp-utf16-unpaired-surrogate' );
```

#### reUtf16UnpairedSurrogate()

Returns a [regular expression][mdn-regexp] to match an unpaired [UTF-16][utf-16] surrogate.

<!-- eslint-disable id-length -->

```javascript
var RE_UTF16_UNPAIRED_SURROGATE = reUtf16UnpairedSurrogate();

var bool = RE_UTF16_UNPAIRED_SURROGATE.test( 'abc\uD800def' );
// returns true
```

#### reUtf16UnpairedSurrogate.REGEXP

[Regular expression][mdn-regexp] to match an unpaired [UTF-16][utf-16] surrogate.

```javascript
var bool = reUtf16UnpairedSurrogate.REGEXP.test( 'abc\uD800def' );
// returns true
```

</section>

<!-- /.usage -->

<section class="examples">

## Examples

<!-- eslint-disable id-length -->

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

```javascript
var reUtf16UnpairedSurrogate = require( '@stdlib/regexp-utf16-unpaired-surrogate' );

var RE_UTF16_UNPAIRED_SURROGATE = reUtf16UnpairedSurrogate();

var bool = RE_UTF16_UNPAIRED_SURROGATE.test( '\uD800' );
// returns true

bool = RE_UTF16_UNPAIRED_SURROGATE.test( '\uDC00' );
// returns true

bool = RE_UTF16_UNPAIRED_SURROGATE.test( 'abc' );
// returns false
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/regexp-utf16-surrogate-pair`][@stdlib/regexp/utf16-surrogate-pair]</span><span class="delimiter">: </span><span class="description">return a regular expression to match a UTF-16 surrogate pair.</span>

</section>

<!-- /.related -->

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/regexp-utf16-unpaired-surrogate/tree/deno
[deno-readme]: https://github.com/stdlib-js/regexp-utf16-unpaired-surrogate/blob/deno/README.md
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[esm-url]: https://github.com/stdlib-js/regexp-utf16-unpaired-surrogate/tree/esm
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[branches-url]: https://github.com/stdlib-js/regexp-utf16-unpaired-surrogate/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/regexp-utf16-unpaired-surrogate/main/LICENSE

[mdn-regexp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions

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

<!-- <related-links> -->

[@stdlib/regexp/utf16-surrogate-pair]: https://www.npmjs.com/package/@stdlib/regexp-utf16-surrogate-pair

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</section>

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