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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_16_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.106 Whale/2.8.108.15 Safari/537.36

Browser: Chrome 83

Operating system: Mac OS X 10.16.0

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Splice	27239850.0 Ops/sec
Slice	100808300.0 Ops/sec
Concat	8752376.0 Ops/sec
Spread	61876300.0 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