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/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Object.values

41K/s

lodash.forEach

3K/s

lodash.each

3K/s

lodash.map

3K/s

Object.keys

3K/s

vanilla for-loop w/ Object.entries

2K/s

Object.entries.map

1K/s

View exact numbers

Test name	Executions per second
✓ Object.values	41,171 Ops/sec
lodash.forEach	3,025 Ops/sec
lodash.each	3,006 Ops/sec
lodash.map	2,665 Ops/sec
Object.keys	2,584 Ops/sec
vanilla for-loop w/ Object.entries	1,645 Ops/sec
Object.entries.map	1,288 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]; }