Run results for: const in a for loop

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

using const in for

19.2M/s

simple normal usage

1.1M/s

View exact numbers

Test name	Executions per second
✓ using const in for	19,194,124 Ops/sec
simple normal usage	1,110,613 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:

using const in for
const morePeople = []; for (const p of people){ morePeople.push(p); }
simple normal usage
const morePeople = []; for (p of people){ morePeople.push(p); }