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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 YaBrowser/17.9.1.768 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 17

Operating system: Windows

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
slice	3429271.8 Ops/sec
spread operator	1810697.6 Ops/sec

Tests:

slice
var other = [ "hello", true, 7 ].concat([ 1, 2, 3]);
spread operator
var other = [ ...[ "hello", true, 7 ], ...[ 1, 2, 3] ]

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

Compare the new ES6 spread operator with the traditional concat() method

slice

spread operator