Run results for: Map vs Object

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Obj lookup

41K/s

Map lookup

28K/s

View exact numbers

Test name	Executions per second
✓ Obj lookup	40,952 Ops/sec
Map lookup	27,776 Ops/sec

Script Preparation code:

var map = new Map();
var obj = {};

map.set('a', 5);
obj['a'] = 5;

var i = 0, count = 1000, a;

Tests: