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Run results for: Performance of Object.values(obj) vs_.values() vs for-in to extract values from an object

Compare performance between the native Object.values(obj) function vs the lodash _.values() option and a function that extracts the values of an object using a for...in loop.

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36
Chrome 78
Windows
Desktop
5 years ago
Test name Executions per second
Object.values(obj) 5009691.5 Ops/sec
_.values(obj) 2708754.2 Ops/sec
for-in 6502445.0 Ops/sec
HTML Preparation code:
AخA
 
1
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.core.js"></script>
Script Preparation code:
 
function extractValues(obj) {
  const t = [];
  for (var key in obj) {
    t[t.length] = obj[key];
  }
  return t;
}
Tests:

  • Object.values(obj)

     
    var a = { a: 1, b: 2, c: 3};
    Object.values(a);

  • _.values(obj)

     
    var a = { a: 1, b: 2, c: 3};
    _.values(a);

  • for-in

     
    var a = { a: 1, b: 2, c: 3};
    extractValues(a);