npm package: @stdlib/iter-some
Description: Test whether at least `n` iterated values are truthy.
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>

# iterSome

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

> Test whether at least `n` [iterated][mdn-iterator-protocol] values are truthy.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/iter-some
```

</section>

<section class="usage">

## Usage

```javascript
var iterSome = require( '@stdlib/iter-some' );
```

#### iterSome( iterator, n )

Tests whether at least `n` [iterated][mdn-iterator-protocol] values are truthy.

```javascript
var array2iterator = require( '@stdlib/array-to-iterator' );

var arr = array2iterator( [ 0, 0, 1, 1, 1 ] );

var bool = iterSome( arr, 3 );
// returns true
```

If a provided [`iterator`][mdn-iterator-protocol] does not return any iterated values, the function returns `false`.

```javascript
var array2iterator = require( '@stdlib/array-to-iterator' );

var bool = iterSome( array2iterator( [] ), 1 );
// returns false
```

</section>

<!-- /.usage -->

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

<section class="notes">

</section>

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<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var randu = require( '@stdlib/random-iter-randu' );
var iterMap = require( '@stdlib/iter-map' );
var iterSome = require( '@stdlib/iter-some' );

function threshold( r ) {
    return ( r > 0.95 );
}

// Create an iterator which generates uniformly distributed pseudorandom numbers:
var opts = {
    'iter': 100
};
var riter = randu( opts );

// Create an iterator which applies a threshold to generated numbers:
var miter = iterMap( riter, threshold );

// Determine if at least 5 values are "truthy":
var bool = iterSome( miter, 5 );
// returns <boolean>

console.log( bool );
```

</section>

<!-- /.examples -->

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<section class="references">

</section>

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<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/iter-any`][@stdlib/iter/any]</span><span class="delimiter">: </span><span class="description">test whether at least one iterated value is truthy.</span>
-   <span class="package-name">[`@stdlib/iter-every`][@stdlib/iter/every]</span><span class="delimiter">: </span><span class="description">test whether all iterated values are truthy.</span>
-   <span class="package-name">[`@stdlib/iter-for-each`][@stdlib/iter/for-each]</span><span class="delimiter">: </span><span class="description">create an iterator which invokes a function for each iterated value before returning the iterated value.</span>
-   <span class="package-name">[`@stdlib/iter-none`][@stdlib/iter/none]</span><span class="delimiter">: </span><span class="description">test whether all iterated values are falsy.</span>
-   <span class="package-name">[`@stdlib/iter-some-by`][@stdlib/iter/some-by]</span><span class="delimiter">: </span><span class="description">test whether at least `n` iterated values pass a test implemented by a predicate function.</span>

</section>

<!-- /.related -->

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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>

<!-- /.stdlib -->

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<section class="links">

[npm-image]: http://img.shields.io/npm/v/@stdlib/iter-some.svg
[npm-url]: https://npmjs.org/package/@stdlib/iter-some

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

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/iter-some/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/iter-some?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/iter-some/tree/deno
[deno-readme]: https://github.com/stdlib-js/iter-some/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/iter-some/tree/umd
[umd-readme]: https://github.com/stdlib-js/iter-some/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/iter-some/tree/esm
[esm-readme]: https://github.com/stdlib-js/iter-some/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/iter-some/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/iter-some/main/LICENSE

[mdn-iterator-protocol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#The_iterator_protocol

<!-- <related-links> -->

[@stdlib/iter/any]: https://www.npmjs.com/package/@stdlib/iter-any

[@stdlib/iter/every]: https://www.npmjs.com/package/@stdlib/iter-every

[@stdlib/iter/for-each]: https://www.npmjs.com/package/@stdlib/iter-for-each

[@stdlib/iter/none]: https://www.npmjs.com/package/@stdlib/iter-none

[@stdlib/iter/some-by]: https://www.npmjs.com/package/@stdlib/iter-some-by

<!-- </related-links> -->

</section>

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