Run results for: _.keys vs object.keys

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0

Browser: Firefox 67

Operating system: Windows 7

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
_.keys	586859.9 Ops/sec
Object.keys	419346.6 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var o = {}
for(var i = 0; i < 101; i++) {
	o[i] = new Date()
}

Tests: