npm package: @stdlib/iter-empty
Description: Create an empty iterator.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
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# iterEmpty

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

> Create an empty iterator.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

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

</section>

<section class="usage">

## Usage

```javascript
var iterEmpty = require( '@stdlib/iter-empty' );
```

#### iterEmpty()

Returns an "empty" iterator (i.e., an iterator which never returns an iterated value).

```javascript
var it = iterEmpty();
// returns <Object>

var bool = it.next().done;
// returns true
```

The returned iterator protocol-compliant object has the following properties:

-   **next**: function which returns an iterator protocol-compliant object containing the next iterated value (if one exists) assigned to a `value` property and a `done` property having a `boolean` value indicating whether the iterator is finished.
-   **return**: function which closes an iterator and returns a single (optional) argument in an iterator protocol-compliant object.

</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 an environment supports `Symbol.iterator`, the returned iterator is iterable.

</section>

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<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var iterEmpty = require( '@stdlib/iter-empty' );

// Create an iterator:
var it = iterEmpty();

// Perform manual iteration...
var v;
while ( true ) {
    v = it.next();
    if ( v.done ) {
        console.log( 'done' );
        break;
    }
    // The following should never run...
    console.log( v.value );
}
```

</section>

<!-- /.examples -->

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</section>

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* * *

## See Also

-   <span class="package-name">[`@stdlib/iter-constant`][@stdlib/iter/constant]</span><span class="delimiter">: </span><span class="description">create an iterator which always returns the same value.</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].

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

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

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

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

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

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</section>

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