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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 YaBrowser/19.3.1.887 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 19

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Array.prototype.concat	6.8 Ops/sec
spread operator	6.6 Ops/sec

Tests:

Array.prototype.concat
var params = Array.from(Array(1000000).keys()); var other = [ 1, 2 ].concat(params);
spread operator
var params = Array.from(Array(1000000).keys()) var other = [ 1, 2, ...params ]

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

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

Array.prototype.concat

spread operator