Run results for: Clone deep vs Spread vs Stringify

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36

Browser: Chrome 81

Operating system: Mac OS X 10.15.4

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Lodash	537304.7 Ops/sec
Spread	4923947.0 Ops/sec
Stringify	285134.1 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,
  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
myCopy = _.cloneDeep(MyObject);
Spread
myCopy = { ...MyObject }
Stringify
myCopy = JSON.parse(JSON.stringify(MyObject))

Run results for: Clone deep vs Spread vs Stringify

Lodash

Spread

Stringify