Run results for: Pushing onto an array in a loop vs pushing with the spread operator

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36

Browser: Chrome 148

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 months ago

Push with spread

9.0M/s

Push with a for...of loop

6.0M/s

Push with a classic for loop

1.8M/s

View exact numbers

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const data = new Array(100);
data.fill(1);

Tests:

Push with a for...of loop
const destination = []; for (const elem of data) { destination.push(elem); }
Push with spread
const destination = []; destination.push(...data);
Push with a classic for loop
const destination = []; for (let i = 0; i < data.length; i++) { destination.push(data[i]); }