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

Test name	Executions per second
IndexOf	460155.5 Ops/sec
Includes	317222.4 Ops/sec
ForEach with === with length check	285828.7 Ops/sec
ForEach with ===	226563.8 Ops/sec
ForEach with ==	135990.2 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!'); })

Run results for: Search in array of strings

IndexOf

Includes

ForEach with === with length check

ForEach with ===

ForEach with ==