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

Run details:

User agent: Mozilla/5.0 (Linux; Android 6.0.1; SM-G900F Build/MMB29M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.137 Mobile Safari/537.36

Browser: Chrome Mobile 64

Operating system: Android 6.0.1

Device Platform: Samsung SM-G900F

Date tested: 2025 years ago

Test name	Executions per second
Array.prototype.concat	636419.3 Ops/sec
spread operator	449819.7 Ops/sec
jQuery merge	100117.9 Ops/sec

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
jQuery merge
var params = [ "hello", true, 7 ]; var other = $.merge([1, 2], params);

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

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

Array.prototype.concat

spread operator

jQuery merge