Run results for: Array.prototype.concat vs spread operator

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0) Gecko/20100101 Firefox/61.0

Browser: Firefox 61

Operating system: Mac OS X 10.13

Device Platform: Desktop

Date tested: 5 years ago

Script Preparation code:

var arr = Array(100).fill([{n: ''}]);

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = arr.concat(params);
spread operator
var params = [ "hello", true, 7 ]; var other = [ ...arr, ...params ];
array.push
arr.push("hello", true, 7); var other = arr;