@marcm/deep-equal

Mighty fast deep equals (~837 bytes gzipped)

Install

npm install @marcm/deep-equal

yarn add @marcm/deep-equal

Supports

• Object
• Array
• TypedArray
• RegExp
• Promise
• Date
• NaN
• Set
• Map
• React (@marcm/deep-equal/react)

Benchmark¹ (from fast-equals)

Package	Ops / sec
@marcm/deep-equal	11,294.928
fast-equals	7,317.215
deep-eql	4,528.424
fast-equals (circular)	2,966.189
fast-deep-equal	2,841.046
react-fast-compare	2,684.473
nano-equal	1,150.366
underscore.isEqual	1,107.566
lodash.isEqual	673.473
assert.deepStrictEqual	30.697
deep-equal	2.888

Passes the full test suite of fast-equals

Usage

const { deepEqual } = require('@marcm/deep-equal')
// or
import { deepEqual } from '@marcm/deep-equal'
// or if being used for React
import { deepEqual } from '@marcm/deep-equal/react'

// Typed Arrays
deepEqual(new Float32Array([3, 4, 6]), new Float32Array([3, 4, 6])) // true
deepEqual(new Float32Array([3, 4, 6]), new Float32Array([3, 4])) // false
// Objects and array
deepEqual([{ a: 'a' }, { b: 'b' }], [{ a: 'a' }, { b: 'b' }]) // true
// Dates
deepEqual(new Date('2017-06-16T21:36:48.362Z'), new Date('2016-06-16T21:36:48.362Z')) // false
deepEqual(new Date('2017-06-16T21:36:48.362Z'), new Date('2017-06-16T21:36:48.362Z')) // true

Footnotes

1. showing benchmark 'overall averages'. Ran on an M1 Pro (macOS 12.4). Run yourself by adding @marcm/deep-equal to the fast-equals benchmark ↩