Run results for: Map vs Object

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_0_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.0 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.0.2

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Map lookup	2816.1 Ops/sec
Obj lookup	2808.4 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: