ptzagk / fast-deep-equal

The fastest deep equality check with Date and RegExp support

fast-deep-equal

The fastest deep equal

Install

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

var equal = require('fast-deep-equal');
console.log(equal({foo: 'bar'}, {foo: 'bar'})); // true

Performance benchmark

Node.js v9.11.1:

fast-deep-equal x 226,960 ops/sec ±1.55% (86 runs sampled)
nano-equal x 218,210 ops/sec ±0.79% (89 runs sampled)
shallow-equal-fuzzy x 206,762 ops/sec ±0.84% (88 runs sampled)
underscore.isEqual x 128,668 ops/sec ±0.75% (91 runs sampled)
lodash.isEqual x 44,895 ops/sec ±0.67% (85 runs sampled)
deep-equal x 51,616 ops/sec ±0.96% (90 runs sampled)
deep-eql x 28,218 ops/sec ±0.42% (85 runs sampled)
assert.deepStrictEqual x 1,777 ops/sec ±1.05% (86 runs sampled)
ramda.equals x 13,466 ops/sec ±0.82% (86 runs sampled)
The fastest is fast-deep-equal

To run benchmark (requires node.js 6+):

npm install
node benchmark

License

MIT