Trim whitespace characters from the beginning and end of a string.
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> Trim whitespace characters from the beginning and end of a string.
``bash`
npm install @stdlib/string-trim
`javascript`
var trim = require( '@stdlib/string-trim' );
#### trim( str )
Trims whitespace characters from the beginning and end of a string.
`javascript`
var out = trim( ' \t\t\n Beep \r\n\t ' );
// returns 'Beep'
- Following [Unicode 6.3.0][unicode] and later, "whitespace" is defined as the following characters:
- \f
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`javascript
var trim = require( '@stdlib/string-trim' );
var out = trim( ' Whitespace ' );
// returns 'Whitespace'
out = trim( '\t\t\tTabs\t\t\t' );
// returns 'Tabs'
out = trim( '\n\n\nNew Lines\n\n\n' );
// returns 'New Lines'
`
- [@stdlib/string-trim-cli][@stdlib/string-trim-cli]: CLI package for use as a command-line utility.
- [@stdlib/string-left-trim][@stdlib/string/left-trim]: trim whitespace characters from the beginning of a string.
- [@stdlib/string-pad][@stdlib/string/pad]: pad a string.
- [@stdlib/string-right-trim][@stdlib/string/right-trim]: trim whitespace characters from the end of a string.
*
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].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
[@stdlib/string-trim-cli]: https://www.npmjs.com/package/@stdlib/string-trim-cli
[npm-image]: http://img.shields.io/npm/v/@stdlib/string-trim.svg
[npm-url]: https://npmjs.org/package/@stdlib/string-trim
[test-image]: https://github.com/stdlib-js/string-trim/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/string-trim/actions/workflows/test.yml?query=branch:v0.2.3
[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/string-trim/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/string-trim?branch=main
[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-trim#cli
[cli-url]: https://github.com/stdlib-js/string-trim/tree/cli
[@stdlib/string-trim]: https://github.com/stdlib-js/string-trim/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-trim/tree/deno
[deno-readme]: https://github.com/stdlib-js/string-trim/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/string-trim/tree/umd
[umd-readme]: https://github.com/stdlib-js/string-trim/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/string-trim/tree/esm
[esm-readme]: https://github.com/stdlib-js/string-trim/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/string-trim/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/string-trim/main/LICENSE
[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams
[unicode]: https://en.wikipedia.org/wiki/Unicode
[mdn-regexp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
[@stdlib/string/left-trim]: https://www.npmjs.com/package/@stdlib/string-left-trim
[@stdlib/string/pad]: https://www.npmjs.com/package/@stdlib/string-pad
[@stdlib/string/right-trim]: https://www.npmjs.com/package/@stdlib/string-right-trim