Run results for: lodash.mapKeys vs Iterating over Object.keys

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

lodash.mapKeys

1.1M/s

native

612K/s

View exact numbers

Test name	Executions per second
✓ lodash.mapKeys	1,054,547 Ops/sec
native	612,120 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var value = {a: 30310, b: 100303, c: 3040494};

Tests:

lodash.mapKeys
_.mapKeys(value, k => k + '-changed')
native
Object.assign({}, ...Object.keys(value).map(k => ({ [k + '-changed']: value[k] })))