Run results for: spread array performance (vs slice, splice, concat) - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; Pixel 4 XL) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.61 Mobile Safari/537.36

Browser: Chrome Mobile 101

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Splice	19060570.0 Ops/sec
Slice	77878920.0 Ops/sec
Concat	50270350.0 Ops/sec
Spread	44594720.0 Ops/sec

Website performance monitoring

Tests:

Splice
const testArray = [1, 2, 3]; const newTestArray = testArray.splice(0);
Slice
const testArray = [1, 2, 3]; const newTestArray = testArray.slice();
Concat
const testArray = [1, 2, 3]; const newTestArray = testArray.concat();
Spread
const testArray = [1, 2, 3]; const newTestArray = [...testArray];