npm package: @stdlib/string-right-trim-n
Description: Trim `n` characters from the end of a string.
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>
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</details>

# rtrimN

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

> Trim `n` characters from the end of a string.

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</section>

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<section class="installation">

## Installation

```bash
npm install @stdlib/string-right-trim-n
```

</section>

<section class="usage">

## Usage

```javascript
var rtrimN = require( '@stdlib/string-right-trim-n' );
```

#### rtrimN( str, n\[, chars] )

Trims `n` characters from the end of a string.

```javascript
var str = '  foo  ';
var out = rtrimN( str, str.length );
// returns '  foo'

out = rtrimN( str, 1 );
// returns '  foo '
```

By default, the function trims whitespace characters. To trim a different set of characters instead, provide a string or an array of characters to trim:

```javascript
var str = '🐶🐶🐶 Animals 🐶🐶🐶';
var out = rtrimN( str, str.length, [ '🐶', ' ' ] );
// returns '🐶🐶🐶 Animals'

out = rtrimN( str, str.length, '🐶 ' );
// returns '🐶🐶🐶 Animals'
```

</section>

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<section class="notes">

</section>

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<section class="examples">

## Examples

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

```javascript
var rtrimN = require( '@stdlib/string-right-trim-n' );

var out = rtrimN( '   Whitespace   ', 3 );
// returns '   Whitespace'

out = rtrimN( '\t\t\tTabs\t\t\t', 2 );
// returns '\t\t\tTabs\t'

out = rtrimN( '~~~CUSTOM~~~', 3, '~' );
// returns '~~~CUSTOM'
```

</section>

<!-- /.examples -->

<!-- Section for describing a command-line interface. -->



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## See Also

-   <span class="package-name">[`@stdlib/string-right-trim-n-cli`][@stdlib/string-right-trim-n-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-left-trim-n`][@stdlib/string/left-trim-n]</span><span class="delimiter">: </span><span class="description">trim `n` characters from the beginning of a string.</span>
-   <span class="package-name">[`@stdlib/string-trim`][@stdlib/string/trim]</span><span class="delimiter">: </span><span class="description">trim whitespace characters from the beginning and end of a string.</span>

</section>

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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].

</section>

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[@stdlib/string-right-trim-n-cli]: https://www.npmjs.com/package/@stdlib/string-right-trim-n-cli

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

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

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

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

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[cli-section]: https://github.com/stdlib-js/string-right-trim-n#cli
[cli-url]: https://github.com/stdlib-js/string-right-trim-n/tree/cli
[@stdlib/string-right-trim-n]: https://github.com/stdlib-js/string-right-trim-n/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-right-trim-n/tree/deno
[deno-readme]: https://github.com/stdlib-js/string-right-trim-n/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/string-right-trim-n/tree/umd
[umd-readme]: https://github.com/stdlib-js/string-right-trim-n/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/string-right-trim-n/tree/esm
[esm-readme]: https://github.com/stdlib-js/string-right-trim-n/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/string-right-trim-n/blob/main/branches.md

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

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

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

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[@stdlib/string/left-trim-n]: https://www.npmjs.com/package/@stdlib/string-left-trim-n

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

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</section>

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