Run results for: for vs for of

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/127.0.6533.107 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 127

Operating system: iOS 17.6

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

for of

1K/s

for

44/s

View exact numbers

Test name	Executions per second
✓ for of	1,089 Ops/sec
for	44 Ops/sec

Script Preparation code:

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

Tests:

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