npm package: @stdlib/string-headercase
Description: Convert a string to HTTP header case.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
  </summary>
  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
  <p>The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.</p>
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</details>

# headercase

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

> Convert a string to HTTP header case.

<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/string-headercase
```

</section>

<section class="usage">

## Usage

```javascript
var headercase = require( '@stdlib/string-headercase' );
```

#### headercase( str )

Converts a string to HTTP header case.

```javascript
var out = headercase( 'foo bar' );
// returns 'Foo-Bar'

out = headercase( 'IS_MOBILE' );
// returns 'Is-Mobile'

out = headercase( 'Hello World!' );
// returns 'Hello-World'

out = headercase( '--foo-bar--' );
// returns 'Foo-Bar'
```

</section>

<!-- /.usage -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

```javascript
var headercase = require( '@stdlib/string-headercase' );

var str = 'Hello World!';
var out = headercase( str );
// returns 'Hello-World'

str = 'HELLO WORLD!';
out = headercase( str );
// returns 'Hello-World'

str = 'To be, or not to be: that is the question.';
out = headercase( str );
// returns 'To-Be-Or-Not-To-Be-That-Is-The-Question'
```

</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/string-headercase-cli`][@stdlib/string-headercase-cli]</span><span class="delimiter">: </span><span class="description">CLI package for use as a command-line utility.</span>
-   <span class="package-name">[`@stdlib/string-camelcase`][@stdlib/string/camelcase]</span><span class="delimiter">: </span><span class="description">convert a string to camel case.</span>
-   <span class="package-name">[`@stdlib/string-kebabcase`][@stdlib/string/kebabcase]</span><span class="delimiter">: </span><span class="description">convert a string to kebab case.</span>
-   <span class="package-name">[`@stdlib/string-pascalcase`][@stdlib/string/pascalcase]</span><span class="delimiter">: </span><span class="description">convert a string to Pascal case.</span>
-   <span class="package-name">[`@stdlib/string-snakecase`][@stdlib/string/snakecase]</span><span class="delimiter">: </span><span class="description">convert a string to snake case.</span>

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->


<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].

</section>

<!-- /.stdlib -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

[@stdlib/string-headercase-cli]: https://www.npmjs.com/package/@stdlib/string-headercase-cli

[npm-image]: http://img.shields.io/npm/v/@stdlib/string-headercase.svg
[npm-url]: https://npmjs.org/package/@stdlib/string-headercase

[test-image]: https://github.com/stdlib-js/string-headercase/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/string-headercase/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/string-headercase/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/string-headercase?branch=main

<!--

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-->

[chat-image]: https://img.shields.io/badge/zulip-join_chat-brightgreen.svg
[chat-url]: https://stdlib.zulipchat.com

[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[cli-section]: https://github.com/stdlib-js/string-headercase#cli
[cli-url]: https://github.com/stdlib-js/string-headercase/tree/cli
[@stdlib/string-headercase]: https://github.com/stdlib-js/string-headercase/tree/main

[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/string-headercase/tree/deno
[deno-readme]: https://github.com/stdlib-js/string-headercase/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/string-headercase/tree/umd
[umd-readme]: https://github.com/stdlib-js/string-headercase/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/string-headercase/tree/esm
[esm-readme]: https://github.com/stdlib-js/string-headercase/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/string-headercase/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/string-headercase/main/LICENSE

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

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

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

[@stdlib/string/camelcase]: https://www.npmjs.com/package/@stdlib/string-camelcase

[@stdlib/string/kebabcase]: https://www.npmjs.com/package/@stdlib/string-kebabcase

[@stdlib/string/pascalcase]: https://www.npmjs.com/package/@stdlib/string-pascalcase

[@stdlib/string/snakecase]: https://www.npmjs.com/package/@stdlib/string-snakecase

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

</section>

<!-- /.links -->