# fast-deep-equal The fastest deep equal [](https://travis-ci.org/epoberezkin/fast-deep-equal) [](http://badge.fury.io/js/fast-deep-equal) [](https://coveralls.io/github/epoberezkin/fast-deep-equal?branch=master) ## Install ```bash npm install fast-deep-equal ``` ## Features - ES5 compatible - works in node.js (0.10+) and browsers (IE9+) - checks equality of Date and RegExp objects by value. ## Usage ```javascript var equal = require('fast-deep-equal'); console.log(equal({foo: 'bar'}, {foo: 'bar'})); // true ``` ## Performance benchmark ``` fast-deep-equal x 82,915 ops/sec ±0.63% (89 runs sampled) nano-equal x 50,506 ops/sec ±2.23% (86 runs sampled) shallow-equal-fuzzy x 14,873 ops/sec ±3.19% (83 runs sampled) underscore.isEqual x 16,055 ops/sec ±2.29% (85 runs sampled) lodash.isEqual x 10,740 ops/sec ±1.04% (89 runs sampled) deep-equal x 12,276 ops/sec ±2.44% (84 runs sampled) deep-eql x 10,565 ops/sec ±0.89% (90 runs sampled) assert.deepStrictEqual x 965 ops/sec ±2.99% (81 runs sampled) The fastest is fast-deep-equal ``` To run benchmark (requires node.js 6+): ```bash npm install node benchmark ``` ## License [MIT](https://github.com/epoberezkin/fast-deep-equal/blob/master/LICENSE)