Run results for: Angular clone vs Lodash cloneDeep vs JSON Clone

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) snap Chromium/71.0.3578.98 Chrome/71.0.3578.98 Safari/537.36

Browser: Chromium 71

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Lodash cloneDeep	513491.8 Ops/sec
Json clone	252172.2 Ops/sec
Angular copy	508284.6 Ops/sec

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0/angular.min.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var MyObject = {
  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));
Angular copy
myCopy = angular.copy(MyObject);

Run results for: Angular clone vs Lodash cloneDeep vs JSON Clone

Lodash cloneDeep

Json clone

Angular copy