Run results for: Array concat vs spread operator vs push (5k elements)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser: Chrome 87

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Script Preparation code:

var params = Array.from(5000);
var arr2 = [1,2,3];

Tests:

Array.prototype.concat
var other = []; for (let i = 0; i < params.length; i++) { other = other.concat(arr2); }
spread operator
var other = []; for (let i = 0; i < params.length; i++) { other = [...other, ...arr2]; }
Push
var other = []; for (let i = 0; i < params.length; i++) { other.push(...arr2); }