Run results for: Array push vs spread operator (including front) - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.92 Safari/537.36

Browser: Chrome 81

Operating system: Mac OS X 10.14.3

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Push	18147846.0 Ops/sec
Spread	11412336.0 Ops/sec
Push Front	6267919.5 Ops/sec
Spread Front	20466118.0 Ops/sec

Tests:

Push
var params = [ "hello", true, 7 ] var other = params.push(1);
Spread
var params = [ "hello", true, 7 ] var other = [...params, 1];
Push Front
var params = [ "hello", true, 7 ] var other = params.unshift(1);
Spread Front
var params = [ "hello", true, 7 ] var other = [1, ...params];