npm package: @stdlib/array-base-cusome
Description: Cumulatively test whether at least `n` array elements in a provided array are truthy.
Author: The Stdlib Authors
Latest version: 0.1.1

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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>

# cusome

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

> Cumulatively test whether at least `n` array elements in a provided array are truthy.

<section class="installation">

## Installation

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

</section>

<section class="usage">

## Usage

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

#### cusome( x, n )

Cumulatively tests whether at least `n` array elements in a provided array are truthy.

```javascript
var x = [ false, false, false, true, true ];

var y = cusome( x, 2 );
// returns [ false, false, false, false, true ];
```

#### cusome.assign( x, n, y, stride, offset )

Cumulatively tests whether at least `n` array elements in a provided array are truthy and assigns results to a provided output array.

```javascript
var x = [ false, false, false, true, true ];
var y = [ false, null, false, null, false, null, false, null, false, null ];

var out = cusome.assign( x, 2, y, 2, 0 );
// returns [ false, null, false, null, false, null, false, null, true, null ]

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

The function supports the following parameters:

-   **x**: input array.
-   **n**: number of elements.
-   **out**: output array.
-   **stride**: output array stride.
-   **offset**: output array offset.

</section>

<!-- /.usage -->

<section class="notes">

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var bernoulli = require( '@stdlib/random-array-bernoulli' );
var cusome = require( '@stdlib/array-base-cusome' );

// Create an array of random values:
var x = bernoulli( 10, 0.3 );
console.log( x );

// Cumulatively test whether at least two array elements are truthy:
var out = cusome( x, 2 );
console.log( out );
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

</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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[npm-url]: https://npmjs.org/package/@stdlib/array-base-cusome

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

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

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

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/array-base-cusome/main/LICENSE

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