Run results for: find reversed for loop versus find method

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

find method

12.3M/s

reversed for loop

4.9M/s

View exact numbers

Test name	Executions per second
✓ find method	12,336,973 Ops/sec
reversed for loop	4,873,666 Ops/sec

Script Preparation code:

var array = [];
for (let i = 0 ; i < 10000 ; i++) {
	array.push (Math.floor (Math.random () * 100));
}

Tests:

reversed for loop
const value = Math.floor (Math.random () * 100); let found = undefined; for (let i = array.length - 1 ; i >= 0 ; i--) { if (array[i] === value) { found = value; break; } }
find method
const value = Math.floor (Math.random () * 100); let found = array.find ( (item) => item === value);