Run results for: Map vs Object

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.53 Safari/537.36 OPR/67.0.3575.13 (Edition beta)

Browser: Opera 67

Operating system: Linux

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Map lookup	2505.4 Ops/sec
Obj lookup	2773.6 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: