Run results for: array copy set vs block vs per item

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

per item

94.8M/s

set

39.7M/s

block

25.4M/s

View exact numbers

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const arr1 = new Float64Array([1,2,3,4,5,6,7,8,9]);
const arr2 = new Float64Array([1,2,3,4,5,6,7,8,9]);

Tests:

set
arr1.set(arr2)
block
[ arr1[0], arr1[1], arr1[2], arr1[3], arr1[4], arr1[5], arr1[6], arr1[7], arr1[8], ]=arr2
per item
arr1[0] = arr2[0]; arr1[1] = arr2[1]; arr1[2] = arr2[2]; arr1[3] = arr2[3]; arr1[4] = arr2[4]; arr1[5] = arr2[5]; arr1[6] = arr2[6]; arr1[7] = arr2[7]; arr1[8] = arr2[8];