Run results for: lodash vs for-of vs forEach vs map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36

Browser: Chrome 94

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
lodash.each	3228.0 Ops/sec
native for-of w/ entries	1553.5 Ops/sec
native forEach w/ entries	1253.7 Ops/sec
vanilla for-loop w/ Object.keys	1279.6 Ops/sec
vanilla for-loop w/ Object.entries	1567.3 Ops/sec
vanilla for-loop w/ Object.values (no keys)	22756.9 Ops/sec
native forEach w/ Object.values (no keys)	15156.6 Ops/sec
native for-in	636.9 Ops/sec
map	3516653.8 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
const a = []; _.each(obj, function(v,k) { a.push(v); });
native for-of w/ entries
const a = []; for (const [k, v] of Object.entries(obj)) { a.push(v); }
native forEach w/ entries
const a =[]; Object.entries(obj).forEach(function(v, k) { a.push(v); })
vanilla for-loop w/ Object.keys
const a=[]; const keys = Object.keys(obj); for (let i = 0; i < keys.length; i++) { const v = obj[keys[i]]; a.push(v);}
vanilla for-loop w/ Object.entries
const a=[]; const entries = Object.entries(obj); for (let i = 0; i < entries.length; i++) { const [k, v] = entries[i]; a.push(v);}
vanilla for-loop w/ Object.values (no keys)
const a =[]; const values = Object.values(obj); for (let i = 0; i < values.length; i++){ a.push(values[i]);}
native forEach w/ Object.values (no keys)
const a =[]; Object.values(obj).forEach(function(v) { a.push(v); })
native for-in
const a =[]; for (const prop in obj) { if (obj.hasOwnProperty(prop)) { const v = obj[prop]; a.push(v);} }
map
const results = Array.from(obj).map(x=>x);