Run results for: Array diff

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

set diff

11.4M/s

lodash

9K/s

View exact numbers

Test name	Executions per second
✓ set diff	11,402,861 Ops/sec
lodash	8,526 Ops/sec

Script Preparation code:

function dec2hex (dec) {
  return dec < 10
    ? '0' + String(dec)
    : dec.toString(16)
}

function generateId (len) {
  var arr = new Uint8Array((len || 40) / 2)
  window.crypto.getRandomValues(arr)
  return Array.from(arr, dec2hex).join('')
}

var a = []
var b = []
for( let i = 0; i < 1000; i++)
{
  a[i] = generateId(16)
  b[i] = generateId(16)
}

 var bs = new Set(b)

Tests:

lodash
const res = _.xor(a, b).lenght === 0;
set diff
const res = a.lenght !== b.lengh && a.all((x) => bs.has(x))