Efficient implementation of Levenshtein algorithm with locale-specific collator support.
Install using npm:
$ npm install fast-levenshtein
$ bower install fast-levenshtein
If you are not using any module loader system then the API will then be accessible via the
var levenshtein = ;var distance = levenshtein; // 2var distance = levenshtein; // 1
Locale-sensitive string comparisons
It supports using Intl.Collator for locale-sensitive string comparisons:
var levenshtein = ;levenshtein;// 1
To build the code and run the tests:
$ npm install -g grunt-cli$ npm install$ npm run build
Benchmarked against other node.js levenshtein distance modules (on Macbook Air 2012, Core i7, 8GB RAM):
Running suite Implementation comparison [benchmark/speed.js]...>> levenshtein-edit-distance x 234 ops/sec ±3.02% (73 runs sampled)>> levenshtein-component x 422 ops/sec ±4.38% (83 runs sampled)>> levenshtein-deltas x 283 ops/sec ±3.83% (78 runs sampled)>> natural x 255 ops/sec ±0.76% (88 runs sampled)>> levenshtein x 180 ops/sec ±3.55% (86 runs sampled)>> fast-levenshtein x 1,792 ops/sec ±2.72% (95 runs sampled)Benchmark done.Fastest test is fast-levenshtein at 4.2x faster than levenshtein-component
You can run this benchmark yourself by doing:
$ npm install$ npm run build$ npm run benchmark
If you wish to submit a pull request please update and/or create new tests for any changes you make and ensure the grunt build passes.
See CONTRIBUTING.md for details.
MIT - see LICENSE.md