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

Run details:

User agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Fedora

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
lodash.mapKeys	1412088.1 Ops/sec
native	997716.5 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] })))