Run results for: For loop vs Index Of (1000000 case)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
for loop	1026.6 Ops/sec
indexOf	60.9 Ops/sec

Script Preparation code:

var arr = [];
var count = 1000000;
for(var i = 0; i<count; i++)
{
  arr.push(i);
}

Tests:

for loop
function indexOfFor(obj, list) { var i; for (i = 0; i < list.length; i++) { if (list[i] === obj) { return i; } } return -1; }; indexOfFor(900000, arr);
indexOf
arr.indexOf(900000, arr);