npm package: @stdlib/ndarray-flipud
Description: Return a read-only view of an input ndarray in which the order of elements along the second-to-last dimension is reversed.
Author: The Stdlib Authors
Latest version: 0.1.1

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    About stdlib...
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  <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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# flipud

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

> Return a **read-only** view of an input [`ndarray`][@stdlib/ndarray/ctor] in which the order of elements along the second-to-last dimension is reversed.

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<section class="installation">

## Installation

```bash
npm install @stdlib/ndarray-flipud
```

</section>

<section class="usage">

## Usage

```javascript
var flipud = require( '@stdlib/ndarray-flipud' );
```

#### flipud( x )

Returns a read-only view of an input [`ndarray`][@stdlib/ndarray/ctor] in which the order of elements along the second-to-last dimension is reversed.

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

var x = array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ], {
    'shape': [ 3, 2 ]
});
// returns <ndarray>[ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ]

var y = flipud( x );
// returns <ndarray>[ [ 5.0, 6.0 ], [ 3.0, 4.0 ], [ 1.0, 2.0 ] ]
```

</section>

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</section>

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<section class="examples">

## Examples

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

```javascript
var uniform = require( '@stdlib/random-uniform' );
var ndarray2array = require( '@stdlib/ndarray-to-array' );
var flipud = require( '@stdlib/ndarray-flipud' );

var x = uniform( [ 3, 3, 3 ], -10.0, 10.0 );
console.log( ndarray2array( x ) );

var y = flipud( x );
console.log( ndarray2array( y ) );
```

</section>

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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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[test-image]: https://github.com/stdlib-js/ndarray-flipud/actions/workflows/test.yml/badge.svg?branch=v0.1.1
[test-url]: https://github.com/stdlib-js/ndarray-flipud/actions/workflows/test.yml?query=branch:v0.1.1

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

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

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

[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/ndarray-flipud/tree/deno
[deno-readme]: https://github.com/stdlib-js/ndarray-flipud/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/ndarray-flipud/tree/umd
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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/ndarray-flipud/main/LICENSE

[@stdlib/ndarray/ctor]: https://www.npmjs.com/package/@stdlib/ndarray-ctor

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