Run results for: Array vs Uint32Array (TypedArray) (part 2)

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.1

Device Platform: Mobile

Date tested: 8 months ago

TypedArray.reverse()

459K/s

Array[i] (sequential)

159K/s

Array.reverse()

156K/s

TypedArray[i] (sequential)

128K/s

TypedArray.sort()

56K/s

Array[i] (random)

30K/s

TypedArray[i] (random)

24K/s

TypedArray.toSorted()

2K/s

Array.sort()

737/s

Array.toSorted()

573/s

View exact numbers

Script Preparation code:

var arr32 = new Uint32Array(16384)
crypto.getRandomValues(arr32)
var array = Array.from(arr32)

Tests:

Array.reverse()
array.reverse()
TypedArray.reverse()
arr32.reverse()
Array.toSorted()
array.toSorted()
TypedArray.toSorted()
arr32.toSorted()
Array.sort()
array.sort(); array.reverse(); // fast "un-sort"
TypedArray.sort()
arr32.sort(); arr32.reverse(); // fast "un-sort"
Array[i] (sequential)
for (let i = 0; i < 16384; i++) array[i]++
TypedArray[i] (sequential)
for (let i = 0; i < 16384; i++) arr32[i]++
Array[i] (random)
for(let i = 0; i < 16384; i++) array[i * 11003 % 16384] = array[i * 12011 % 16384] + array[i * 13001 % 16384]
TypedArray[i] (random)
for(let i = 0; i < 16384; i++) arr32[i * 11003 % 16384] = arr32[i * 12011 % 16384] + arr32[i * 13001 % 16384]