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

Run details:

User agent: Mozilla/5.0 (Linux; Android 9; Redmi Note 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.104 Mobile Safari/537.36

Browser: Chrome Mobile 96

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Splice	7455883.0 Ops/sec
Slice	29864810.0 Ops/sec
Concat	18721630.0 Ops/sec
Spread	17225800.0 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];