Run results for: Array concat vs spread operator vs push vs splice vs for-each push vs for-of push

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0

Browser: Firefox 90

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; var b = a.concat(params);
spread operator
var params = [ "hello", true, 7 ] var a = [ 1, 2 ]; var b = [ ...a, ...params ];
Push
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; var b = a.push(...params);
Splice
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; var b = a.splice(params.length, 0, ...params);
Push for-each
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; params.forEach(v => a.push(v));
Push for-of
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; for(v of params) a.push(v);