Run results for: spread array performance (vs slice, splice, concat)

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; Xperia XZ2 Compact) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.105 Mobile Safari/537.36 OPR/63.0.3216.58512

Browser: Opera Mobile 63

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Splice	12265070.0 Ops/sec
Slice	45567500.0 Ops/sec
Concat	4177862.0 Ops/sec
Spread	32900400.0 Ops/sec

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];

Run results for: spread array performance (vs slice, splice, concat)

Splice

Slice

Concat

Spread