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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36

Browser: Chrome 77

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
push	2778991.0 Ops/sec
spread	2879690.0 Ops/sec
concat	4683488.0 Ops/sec

Website performance monitoring

Tests:

push
const a = [1,2,3]; const b = [4,5,6]; a.push(...b);
spread
const a = [1,2,3]; const b = [4,5,6]; const c = [...a, ...b]
concat
const a = [1,2,3]; const b = [4,5,6]; const c = a.concat(b)