Run results for: push vs set length and index vs index vs typedArray to array vs typedArray

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36

Browser: Chrome 116

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Tests:

push
const arr = [] const length = 100000 for(let i = 0; i < length; i++) { arr.push(i, 1) } console.log(arr[0], arr[100], arr[1000], arr[10001], arr[20000])
set length and index
const arr = [] const length = 100000 arr.length = length*2+1 for(let i = 0; i < length; i++) { arr[i*2] = i; arr[i*2+1] = 1; } console.log(arr[0], arr[100], arr[1000], arr[10001], arr[20000])
index
const arr = [] const length = 100000 for(let i = 0; i < length; i++) { arr[i*2] = i; arr[i*2+1] = 1; } console.log(arr[0], arr[100], arr[1000], arr[10001], arr[20000])
typedArray to js array
const typedArray = new Int8Array(20001); const length = 100000 for(let i = 0; i < length; i++) { typedArray[i*2] = i; typedArray[i*2+1] = 1; } const arr = Array.from(typedArray); console.log(arr[0], arr[100], arr[1000], arr[10001], arr[20000])
typedArray
const arr = new Int8Array(20001); const length = 100000 for(let i = 0; i < length; i++) { arr[i*2] = i; arr[i*2+1] = 1; } console.log(arr[0], arr[100], arr[1000], arr[10001], arr[20000])