Run results for: deep cloning an object: angularjs angular.copy vs lodash deepclone

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.5.1

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
angularjs angular.copy	0.3 Ops/sec
lodash cloneDeep	16.4 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.8/angular.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.14/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:

angularjs angular.copy
myCopy = angular.copy(MyObject)
lodash cloneDeep
myCopy = _.cloneDeep(MyObject);

Run results for: deep cloning an object: angularjs angular.copy vs lodash deepclone

angularjs angular.copy

lodash cloneDeep