Run results for: Lodash cloneDeep vs freeze vs stringify

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 14_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 14

Operating system: iOS 14.4

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
Lodash cloneDeep	964942.9 Ops/sec
freeze	908587.0 Ops/sec
Stringify	1152058.0 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 cloneDeep
myCopy = _.cloneDeep(MyObject);
freeze
function deepFreeze(object) { // Retrieve the property names defined on object var propNames = Object.getOwnPropertyNames(object); // Freeze properties before freezing self for (let name of propNames) { let value = object[name]; object[name] = value && typeof value === "object" ? deepFreeze(value) : value; } return Object.freeze(object); } myCopy = deepFreeze(MyObject)
Stringify
myCopy=JSON.stringify(MyObject)

Run results for: Lodash cloneDeep vs freeze vs stringify

Lodash cloneDeep

freeze

Stringify