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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Object.values

99K/s

lodash.forEach

9K/s

lodash.map

8K/s

lodash.each

8K/s

Object.keys

8K/s

vanilla for-loop w/ Object.entries

4K/s

Object.entries.map

3K/s

View exact numbers

Test name	Executions per second
✓ Object.values	99,434 Ops/sec
lodash.forEach	8,580 Ops/sec
lodash.map	8,395 Ops/sec
lodash.each	8,294 Ops/sec
Object.keys	7,757 Ops/sec
vanilla for-loop w/ Object.entries	3,628 Ops/sec
Object.entries.map	3,288 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]; }