npm package: @stdlib/string-base-distances-levenshtein
Description: Calculates the Levenshtein (edit) distance between two strings.
Author: The Stdlib Authors
Latest version: 0.2.3

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# levenshteinDistance

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

> Calculate the [Levenshtein][levenshtein] (edit) distance between two strings.

<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/string-base-distances-levenshtein
```

</section>

<section class="usage">

## Usage

```javascript
var levenshteinDistance = require( '@stdlib/string-base-distances-levenshtein' );
```

#### levenshteinDistance( s1, s2 )

Calculates the [Levenshtein][levenshtein] (edit) distance between two strings.

```javascript
var dist = levenshteinDistance( 'frog', 'from' );
// returns 1

dist = levenshteinDistance( 'frog', 'froth' );
// returns 2

dist = levenshteinDistance( 'cat', 'kitty' );
// returns 4

dist = levenshteinDistance( '', 'abcdef' );
// returns 6

dist = levenshteinDistance( '1638452297', '2311638451' );
// returns 7
```

</section>

<!-- /.usage -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

```javascript
var levenshteinDistance = require( '@stdlib/string-base-distances-levenshtein' );

var dist = levenshteinDistance( 'algorithm', 'altruistic' );
// returns 6

dist = levenshteinDistance( 'elephant', 'hippo' );
// returns 7

dist = levenshteinDistance( 'javascript', 'typescript' );
// returns 4

dist = levenshteinDistance( 'levenshtein', 'leviathan' );
// returns 6
```

</section>

<!-- /.examples -->

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<section class="related">

</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].

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---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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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/string-base-distances-levenshtein/tree/deno
[deno-readme]: https://github.com/stdlib-js/string-base-distances-levenshtein/blob/deno/README.md
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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/string-base-distances-levenshtein/main/LICENSE

[levenshtein]: https://en.wikipedia.org/wiki/Levenshtein_distance

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