Run results for: array from vs slice

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.0

Browser: Firefox 147

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 6 months ago

slice basic array

57.3M/s

array clone with type check

50.8M/s

array from basic array

10.4M/s

array from typed array

9.8M/s

typed array clone with type check

8.1M/s

slice typed array

3.8M/s

View exact numbers

Test name	Executions per second
✓ slice basic array	57,261,324 Ops/sec
array clone with type check	50,751,352 Ops/sec
array from basic array	10,399,483 Ops/sec
array from typed array	9,799,261 Ops/sec
typed array clone with type check	8,147,322 Ops/sec
slice typed array	3,776,902 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)