Run results for: array vs int32array vs map fixed

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.1.1

Device Platform: Mobile

Date tested: one year ago

int32array

47.8M/s

array

32.5M/s

map

3.6M/s

View exact numbers

Test name	Executions per second
✓ int32array	47,834,236 Ops/sec
array	32,544,928 Ops/sec
map	3,625,483 Ops/sec

Script Preparation code:

var array = [];
var iarray = new Int32Array(100);
var map = new Map();
for (let i = 0; i < 100; i++) {
    array.push(i);
    iarray[i] = i;
    map.set(i, i);
}

Tests:

array
for(let i = 0; i < 100; i++){ array[i] = array[i] + 1; if(i == 50) break; }
int32array
for(let i = 0; i < 100; i++){ iarray[i] = iarray[i] + 1; if(i == 50) break; }
map
for(let i = 0; i < 100; i++){ map.set(i, map.get(i) + 1); if(i == 50) break; }