Run results for: immutable vs Native Javascript Map With Read

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

immutable Map

3K/s

Read immutable Map

2K/s

Native Javascript Map

1K/s

Read Native Javascript Map

1K/s

View exact numbers

Test name	Executions per second
✓ immutable Map	2,876 Ops/sec
Read immutable Map	1,687 Ops/sec
Native Javascript Map	1,354 Ops/sec
Read Native Javascript Map	1,031 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}); }
Read 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}); } for(i=0;i<10000;i++){ const key = 'key'+i; if (obj.has(key)) { const temp = obj.get(key); } }
Read 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}) } for(i=0;i<10000;i++){ const key = 'key'+i; if (obj.has(key)) { const temp = obj.get(key); } }