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

Run details:

User agent: Mozilla/5.0 (iPad; CPU OS 12_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/71.0.3578.89 Mobile/15E148 Safari/605.1

Browser: Chrome Mobile iOS 71

Operating system: iOS 12.1

Device Platform: Tablet

Date tested: 5 years ago

Test name	Executions per second
Splice	1791296.0 Ops/sec
Slice	8892159.0 Ops/sec
Concat	1377729.0 Ops/sec
Spread	11991310.0 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];