Run results for: Map vs Object

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/74.0.3729.169 Chrome/74.0.3729.169 Safari/537.36

Browser: Chromium 74

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Map lookup	4132.1 Ops/sec
Obj lookup	4388.0 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: