Run results for: array vs int32array vs map fixed

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:145.0) Gecko/20100101 Firefox/145.0

Browser: Firefox 145

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

int32array

47.9M/s

array

28.2M/s

map

1.3M/s

View exact numbers

Test name	Executions per second
✓ int32array	47,941,272 Ops/sec
array	28,164,706 Ops/sec
map	1,254,814 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; }