Run results for: for const comparison

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

with const

16.6M/s

forEach

13.7M/s

simple for

640K/s

View exact numbers

Test name	Executions per second
✓ with const	16,617,028 Ops/sec
forEach	13,735,197 Ops/sec
simple for	640,164 Ops/sec

Script Preparation code:

var people = [{name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}, {name: 'a', age:1}]

Tests:

with const
const peopleWork = []; for (const p of people){ peopleWork.push(p); }
simple for
const peopleWork = []; for (p of people){ peopleWork.push(p); }
forEach
const peopleWork = []; people.forEach((p) => { peopleWork.push(p); });