Run results for: Loop over object: lodash vs Object.entries vs Object.keys vs Object.values

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Object.values

46K/s

lodash.each

5K/s

lodash.map

5K/s

lodash.forEach

5K/s

Object.keys

5K/s

vanilla for-loop w/ Object.entries

3K/s

Object.entries.map

2K/s

View exact numbers

Test name	Executions per second
✓ Object.values	45,549 Ops/sec
lodash.each	5,439 Ops/sec
lodash.map	5,277 Ops/sec
lodash.forEach	5,140 Ops/sec
Object.keys	4,635 Ops/sec
vanilla for-loop w/ Object.entries	2,717 Ops/sec
Object.entries.map	2,407 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:

var obj = Array.from({ length: 10000 }).map((value, i) => i).reduce((val, v) => { val[v] = v; return val; }, {})

Tests:

lodash.each
_.each(obj, function(v, k) {})
lodash.map
_.map(obj, function(v, k) {})
Object.entries.map
Object.entries(obj).map(function([k, v]) {})
vanilla for-loop w/ Object.entries
const entries = Object.entries(obj); for (let i = 0; i < entries.length; i++) { const [k, v] = entries[i]; }
lodash.forEach
_.forEach(obj, function(v, k) {})
Object.values
const entries = Object.values(obj); for (let i = 0; i < entries.length; i++) { const v = entries[i]; }
Object.keys
const entries = Object.keys(obj); for (let i = 0; i < entries.length; i++) { const [k, v] = entries[i]; }