Run results for: Array vs Map vs Object

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36

Browser: Chrome 75

Operating system: Mac OS X 10.13.2

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Object	7657274.0 Ops/sec
Array	3388431.0 Ops/sec
Map	6072596.0 Ops/sec

Script Preparation code:

var object = {
  "tags": {
    "required": true,
    "allow_variations": true
  }
}

var array = {
  "tags": ["required", "allow_variations"]
}

var map = {
  "tags": new Map().set('required', true).set('allow_variations', true)
}

Tests:

Object
object.tags.allow_variations
Array
array.tags[array.tags.indexOf('allow_variations')]
Map
map.tags.get('allow_variations')