Run results for: Lodash.countBy vs native code

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

test1

8.4M/s

test2

3.2M/s

View exact numbers

Test name	Executions per second
✓ test1	8,441,273 Ops/sec
test2	3,247,709 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

const values = {
    featurePacks: {
		feature1: true,
		feature2: true,
		feature3: false,
		feature4: true,
		feature5: false,
		feature6: true,
		feature7: false,
    }
}

Tests:

test1
const values = { featurePacks: { feature1: true, feature2: true, feature3: false, feature4: true, feature5: false, feature6: true, feature7: false, } } var tmp = Object.values(values?.featurePacks).filter( function(isSelected){return isSelected}).length
test2
const values = { featurePacks: { feature1: true, feature2: true, feature3: false, feature4: true, feature5: false, feature6: true, feature7: false, } } var tmp = _.countBy(Object.values(values?.featurePacks)).true