Run results for: find vs findIndex vs loop for

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser: Chrome 139

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

for loop

139.1M/s

Array.prototype.findIndex

1K/s

Array.prototype.find

1K/s

View exact numbers

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr[i] = i++;

Tests:

Array.prototype.find
const item = arr.find(item => item == 1E5);
Array.prototype.findIndex
const index = arr.findIndex(item => item == 1E5);
for loop
let index = -1; for(let i = 0; i < arr.length; i++) { arr[i] == 1E5; index = i; break; }