Run results for: Lodash vs IMMUTABLE COPY

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0

Browser: Firefox 99

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Immutable	92781.3 Ops/sec
Lodash	400733.2 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.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:

Immutable
myCopy = Immutable.fromJS(MyObject).mergeDeep({ jayson: {parse: 'JSON.parse() method parses a JSON string... 2'}}).toJS()
Lodash
myCopy = _.merge(_.cloneDeep(MyObject), { jayson: {parse: 'JSON.parse() method parses a JSON string... 2'}})

Run results for: Lodash vs IMMUTABLE COPY

Lodash vs Immutable Copying

Immutable

Lodash