Run results for: map vs obj3

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:64.0) Gecko/20100101 Firefox/64.0

Browser: Firefox 64

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
getMap	28778.6 Ops/sec
getObj	272037.9 Ops/sec
setMap	18298.1 Ops/sec
setObj	270425.8 Ops/sec
setMap2	17638.4 Ops/sec
setObj2	262600.9 Ops/sec

HTML Preparation code:

<script src="lodash.js"></script>

Script Preparation code:

var array = [...Array(1000).keys()];
var map = new Map(array.map(a =>[a,a]));
var obj = Object.fromEntries(map);
var setMap = new Map()
var setObj = {}

Tests:

getMap
for (let i = 0; i< 1000; i++ ){ map.get(i) }
getObj
for (let i = 0; i< 1000; i++ ){ obj[i] }
setMap
for (let i = 0; i< 1000; i++ ){ setMap.set(i,i) }
setObj
for (let i = 0; i< 1000; i++ ){ setObj[i] = i }
setMap2
for (let i = 0; i< 1000; i++ ){ map.set(i,i * 2) }
setObj2
for (let i = 0; i< 1000; i++ ){ obj[i] = i * 2 }

Run results for: map vs obj3

getMap

getObj

setMap

setObj

setMap2

setObj2