Run results for: Map vs Object

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:146.0) Gecko/20100101 Firefox/146.0

Browser: Firefox 146

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 8 months ago

Map lookup

256K/s

Obj lookup

145K/s

View exact numbers

Test name	Executions per second
✓ Map lookup	256,016 Ops/sec
Obj lookup	145,133 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: