npm package: @stdlib/array-base-reverse
Description: Reverse an array in-place.
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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# reverse

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

> Reverse an array in-place.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/array-base-reverse
```

</section>

<section class="usage">

## Usage

```javascript
var reverse = require( '@stdlib/array-base-reverse' );
```

#### reverse( x )

Reverses an array in-place.

```javascript
var x = [ 1, 2, 3, 4, 5, 6 ];

var out = reverse( x );
// returns [ 6, 5, 4, 3, 2, 1 ]

var bool = ( out === x );
// returns true
```

</section>

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<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

## Notes

-   If provided an array-like object having a `reverse` method, the function defers execution to that method and assumes that the method API has the following signature:

    ```text
    x.reverse()
    ```

-   If provided an array-like object without a `reverse` method, the function manually reverses elements and mutates the input array.

</section>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var Float64Array = require( '@stdlib/array-float64' );
var zeroTo = require( '@stdlib/array-base-zero-to' );
var reverse = require( '@stdlib/array-base-reverse' );

var x = new Float64Array( zeroTo( 6 ) );
// returns <Float64Array>[ 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 ]

var y = reverse( x );
// returns <Float64Array>[ 5.0, 4.0, 3.0, 2.0, 1.0, 0.0 ]

var z = reverse( y );
// returns <Float64Array>[ 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 ]
```

</section>

<!-- /.examples -->

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* * *

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

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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/array-base-reverse/tree/deno
[deno-readme]: https://github.com/stdlib-js/array-base-reverse/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/array-base-reverse/tree/umd
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