Run results for: push vs spread vs concat two array - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36

Browser: Chrome 80

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
push	23372250.0 Ops/sec
spread	22736840.0 Ops/sec
concat	7676045.0 Ops/sec

Website performance monitoring

Tests:

push
const a1 = [1,2]; const a2 = [3,4] a1.push(...a2);
spread
const a1 = [1,2]; const a2 = [3,4]; [...a1,...a2]
concat
const a1 = [1,2]; const a2 = [3,4]; a1.concat(a2);