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Contents
# leven [](https://travis-ci.org/sindresorhus/leven)
> Measure the difference between two strings
> The fastest JS implementation of the [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance) algorithm
## Install
```
$ npm install --save leven
```
## Usage
```js
var leven = require('leven');
leven('cat', 'cow');
//=> 2
```
## Benchmark
```
$ npm run bench
```
```
343,757 op/s » leven
264,625 op/s » levenshtein-edit-distance
49,981 op/s » fast-levenshtein
25,496 op/s » levenshtein-component
18,240 op/s » levdist
17,554 op/s » ld
12,633 op/s » natural
9,960 op/s » levenshtein
```
## CLI
```
$ npm install --global leven
```
```
$ leven --help
Example
$ leven cat cow
2
```
## License
MIT © [Sindre Sorhus](http://sindresorhus.com)
Version data entries
11 entries across 11 versions & 4 rubygems