Run results for: Object VS new Map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Map

19.3M/s

Object

19.2M/s

View exact numbers

Test name	Executions per second
✓ Map	19,263,064 Ops/sec
Object	19,171,034 Ops/sec

Script Preparation code:

var a = [];
var b = {}
var map = new Map();

for (var i = 0; i < 5000; i++) {
    a.push(i);
    b[i] = `${i}`;
    map.set(i, i);
}

Tests: