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

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.0.0; LLD-AL10) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.101 Mobile Safari/537.36

Browser: Chrome Mobile 75

Operating system: Android 8.0.0

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Array.prototype.concat	483247.8 Ops/sec
spread operator	3033836.0 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 ]