Run results for: Map vs Object hasOwnProperty

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:123.0) Gecko/20100101 Firefox/123.0

Browser: Firefox 123

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Map lookup

34K/s

Obj lookup

24K/s

View exact numbers

Test name	Executions per second
✓ Map lookup	33,776 Ops/sec
Obj lookup	23,719 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: