Run results for: Map vs Object (models case) Performance

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser: Chrome 103

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Map lookup	552750.8 Ops/sec
Obj lookup	637752.6 Ops/sec
Map lookup 2	616480.4 Ops/sec
Obj lookup 2	623998.5 Ops/sec

Script Preparation code:

var keys = []
var map = new Map()
var obj = {}

var langs = ['en', 'pt', 'es']
var sequels = ['rw', 'ro']

langs.forEach(lang => {
  sequels.forEach(sequel => {
    let val = Math.random()
    let key = sequel + '|' + lang
    keys.push(key)
    map.set(key,val)
	obj[key] = val
  })
})

Tests:

Map lookup
for (let i=0; i<keys.length; i++) { let key = keys[i] a = map.get(key) }
Obj lookup
for (let i=0; i<keys.length; i++) { let key = keys[i] a = obj[key] }
Map lookup 2
for (let i=0; i<keys.length; i++) { let key = keys[i] a = map.get(key) }
Obj lookup 2
for (let i=0; i<keys.length; i++) { let key = keys[i] a = obj[key] }

Run results for: Map vs Object (models case) Performance

Lookup of map vs object

Map lookup

Obj lookup

Map lookup 2

Obj lookup 2