Run results for: Native vs Lodash FP vs Immer

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36

Browser: Chrome 89

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Native	1666881.6 Ops/sec
Lodash FP	748129.4 Ops/sec
Immer	128433.8 Ops/sec

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/lodash/4.17.4/lodash.fp.min.js'></script>
<script src="https://cdn.jsdelivr.net/npm/immer/dist/immer.umd.js"></script>

Script Preparation code:


var array =  ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
var reducer = (r, x) => r + x
var immReduce = immer.produce(reducer)

Tests:

Native
array.reduce(reducer, '')
Lodash FP
_.reduce(reducer, '')(array)
Immer
array.reduce(immReduce)