Run results for: Map vs Object

Run details:

User agent: Mozilla/5.0 (Android 10; Mobile; rv:90.0) Gecko/90.0 Firefox/90.0

Browser: Firefox Mobile 90

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
Map lookup	12700.7 Ops/sec
Obj lookup	26548.2 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: