Run results for: lodash vs for-of vs forEach

Run details:

User agent: Mozilla/5.0 (iPad; CPU OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 12

Operating system: iOS 12.2

Device Platform: Tablet

Date tested: 5 years ago

Test name	Executions per second
lodash.each	279.0 Ops/sec
native for-of w/ entries	236.5 Ops/sec
native forEach w/ entries	216.8 Ops/sec
vanilla for-loop w/ Object.keys	226.6 Ops/sec
vanilla for-loop w/ Object.entries	251.2 Ops/sec
vanilla for-loop w/ Object.values (no keys)	321.1 Ops/sec
native forEach w/ Object.values (no keys)	333.4 Ops/sec
native for-in	189.5 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) {})
native for-of w/ entries
for (const [k, v] of Object.entries(obj)) {}
native forEach w/ entries
Object.entries(obj).forEach(function(v, k) {})
vanilla for-loop w/ Object.keys
const keys = Object.keys(obj); for (let i = 0; i < keys.length; i++) { const v = obj[keys[i]]; }
vanilla for-loop w/ Object.entries
const entries = Object.entries(obj); for (let i = 0; i < entries.length; i++) { const [k, v] = entries[i]; }
vanilla for-loop w/ Object.values (no keys)
const values = Object.values(obj); for (let i = 0; i < values.length; i++){ }
native forEach w/ Object.values (no keys)
Object.values(obj).forEach(function(v) {})
native for-in
for (const prop in obj) { if (obj.hasOwnProperty(prop)) { const v = obj[prop]; } }