Run results for: Array.prototype.concat vs push w/ spread operator vs spread operator

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0

Browser: Firefox 71

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Tests:

Array.prototype.concat
var arr1 = [ 1,2,3,4,5,6,7,8,9,10 ]; var arr2 = [ 1,2,3,4,5,6,7,8,9,10 ]; var newArr = arr1.concat(arr2);
push with spread operator
var arr1 = [ 1,2,3,4,5,6,7,8,9,10 ]; var arr2 = [ 1,2,3,4,5,6,7,8,9,10 ]; var newArr = arr1.push(...arr2);
spread operator
var arr1 = [ 1,2,3,4,5,6,7,8,9,10 ]; var arr2 = [ 1,2,3,4,5,6,7,8,9,10 ]; var newArr = [...arr1, ...arr2];