Run results for: array from vs slice

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

array clone with type check

41.6M/s

slice basic array

33.8M/s

array from basic array

23.9M/s

slice typed array

4.2M/s

array from typed array

2.8M/s

typed array clone with type check

2.8M/s

View exact numbers

Test name	Executions per second
✓ array clone with type check	41,601,220 Ops/sec
slice basic array	33,805,252 Ops/sec
array from basic array	23,934,068 Ops/sec
slice typed array	4,246,048 Ops/sec
array from typed array	2,842,968 Ops/sec
typed array clone with type check	2,836,494 Ops/sec

HTML Preparation code:

<div></div>

Script Preparation code:

const array = [1, 5, 2, 3, 4, 5, 6, 6, 3, 5, 2, 3, 5, 6, 3, 5, 6, 7]
const typedArray = new Float32Array(array);

Tests:

slice typed array
[].slice.call(typedArray);
array from typed array
Array.from(typedArray);
slice basic array
[].slice.call(array);
array from basic array
Array.from(array);
typed array clone with type check
Array.isArray(typedArray) ? typedArray.slice() : Array.from(typedArray)
array clone with type check
Array.isArray(array) ? array.slice() : Array.from(array)