Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36
Chrome 96
Windows
Desktop
3 years ago
Test name Executions per second
Lodash cloneDeep 4.8 Ops/sec
Json clone 3.9 Ops/sec
HTML Preparation code:
x
 
1
2
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js'></script>
Script Preparation code:
 
var MyObject = {};
// Iterate to big object 100 000 times
for (var i = 0; i < 100000; i++) {
  MyObject['prop' + i] = {
    description: 'Creates a deep copy of source, which should be an object or an array.',
    myNumber: 123456789,
    myBoolean: true,
    jayson: {
      stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
      parse: 'JSON.parse() method parses a JSON string...'
    }
  };
}
var myCopy = null;
Tests:
  • Lodash cloneDeep

     
    myCopy = _.cloneDeep(MyObject);
  • Json clone

     
    myCopy = JSON.parse(JSON.stringify(MyObject));