Run results for: Map vs Object

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0

Browser: Firefox 54

Operating system: Windows 7

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
Map	18159056.0 Ops/sec
Object	257312368.0 Ops/sec

Script Preparation code:

var map = new Map();
map.set("att", "value");

var object = {
  att: "value"
}

Tests: