Run results for: object spread vs immutable-js set2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.45 Safari/537.36

Browser: Chrome 70

Operating system: Mac OS X 10.14.0

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
object spread set	4.7 Ops/sec
immutable-js set	2261.7 Ops/sec
object spread set + get	4.1 Ops/sec
immutable-js set + get	1679.6 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/immutability-helper@2.7.0/index.min.js"></script>

Tests:

object spread set
let obj = {}; for(i=0;i<1000;i++){ const key = 'key'+i const value = 'value'+i obj = {...obj, [key]: {key, value}} }
immutable-js set
let obj = Immutable.Map(); for(i=0;i<1000;i++){ const key = 'key'+i const value = 'value'+i obj = obj.set(key, {key, value}) }
object spread set + get
let obj = {}; let v = null for(i=0;i<1000;i++){ const key = 'key'+i const value = 'value'+i obj = {...obj, [key]: {key, value}} } for(i=0;i<1000;i++){ const key = 'key'+i v = obj[key] }
immutable-js set + get
let obj = Immutable.Map(); let v = null for(i=0;i<1000;i++){ const key = 'key'+i const value = 'value'+i obj = obj.set(key, {key, value}) } for(i=0;i<1000;i++){ const key = 'key'+i v = obj.get(key) }

Run results for: object spread vs immutable-js set2

object spread set

immutable-js set

object spread set + get

immutable-js set + get