Run results for: Search in array of strings

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36 Edg/136.0.0.0

Browser: Chrome 136

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

IndexOf

460K/s

Includes

317K/s

ForEach with === with length check

286K/s

ForEach with ===

227K/s

ForEach with ==

136K/s

View exact numbers

Test name	Executions per second
✓ IndexOf	460,155 Ops/sec
Includes	317,222 Ops/sec
ForEach with === with length check	285,829 Ops/sec
ForEach with ===	226,564 Ops/sec
ForEach with ==	135,990 Ops/sec

Script Preparation code:

var str = '1234567';
var arr = [];
for (i = 0; i < 1000; i++) {
   arr.push([...Array(4 + Math.floor(Math.random() * 8))].map(i => (~~(Math.random() * 36)).toString(36)).join(''))
}

Tests:

IndexOf
arr.indexOf(str)
Includes
arr.includes(str)
ForEach with === with length check
arr.forEach(s => { if (s.length === str.length && s === str) console.log('Finded!'); })
ForEach with ===
arr.forEach(s => { if (s === str) console.log('Finded!'); })
ForEach with ==
arr.forEach(s => { if (s == str) console.log('Finded!'); })