Run results for: concat vs spread vs empty spread vs push (performance) - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36

Browser: Chrome 72

Operating system: Mac OS X 10.13.4

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
concat	6416052.0 Ops/sec
spread	22637820.0 Ops/sec
empty spread	25423400.0 Ops/sec
push	31098280.0 Ops/sec

Website performance monitoring

Tests:

concat
var params = ["hello", true, 7]; var other = params.concat([1]);
spread
var params = ["hello", true, 7] var other = [...params, 1]
empty spread
var other = [...[], 1]
push
var params = ["hello", true, 7]; params.push(1);