Run details:
Mozilla/5.0 (iPad; CPU OS 12_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/87.0.4280.77 Mobile/15E148 Safari/604.1
Chrome Mobile iOS 87
iOS 12.5
Tablet
4 years ago
Test name Executions per second
lodash.each 125.4 Ops/sec
lodash.map 128.7 Ops/sec
Object.entries.map 99.9 Ops/sec
vanilla for-loop w/ Object.entries 109.9 Ops/sec
HTML Preparation code:
AخA
 
1
<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]; }