Run results for: for vs for of3

Run details:

User agent: Mozilla/5.0 (Android 12; Mobile; rv:109.0) Gecko/119.0 Firefox/119.0

Browser: Firefox Mobile 119

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

for

717/s

for of

238/s

View exact numbers

Test name	Executions per second
✓ for	717 Ops/sec
for of	238 Ops/sec

Script Preparation code:

var count = 1000 * 1000
var data = [];

do {
  data.push(count);
} while(--count);

Tests:

for
let counter = 0; for (var index = 0; index < data.length; index++) { var obj = data[index]; if (obj == obj) counter++; }
for of
let counter = 0; for (const obj of data) { if (obj == obj) counter++; }