Run results for: spread clone vs lodash cloneDeep vs JSON

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36

Browser: Chrome 69

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
lodash cloneDeep	216109.3 Ops/sec
es6 spread syntax	1010635.0 Ops/sec
JSON stringify	240866.4 Ops/sec

HTML Preparation code:

<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,
  deeperObj: {
    deep: {
    	deeper: 'HELLO'
    },
    is: {
    	this: {
        	working: '?'	
        }
    }
  }
};

var myCopy = null;

Tests:

lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
es6 spread syntax
myCopy = {...MyObject};
JSON stringify
JSON.parse(JSON.stringify(MyObject));

Run results for: spread clone vs lodash cloneDeep vs JSON

lodash cloneDeep

es6 spread syntax

JSON stringify