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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36

Browser: Chrome 78

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Array.prototype.concat	5421919.0 Ops/sec
spread operator	18908830.0 Ops/sec

Tests:

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