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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Browser: Chrome 74

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
push	4608557.0 Ops/sec
spread	4822668.0 Ops/sec
concat	6129171.0 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);