Run results for: immutable vs Native Javascript Map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser: Chrome 109

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
immutable Map	1067.2 Ops/sec
Native Javascript Map	572.8 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:

immutable Map
let obj = Immutable.Map(); for(i=0;i<10000;i++){ const key = 'key'+i const value = 'value'+i obj.set(key, {key, value}) }
Native Javascript Map
let obj = new Map(); for(i=0;i<10000;i++){ const key = 'key'+i const value = 'value'+i obj.set(key, {key, value}) }

Run results for: immutable vs Native Javascript Map

immutable vs Native Javascript Map

immutable Map

Native Javascript Map