Run results for: CloneDeep vs Custom Clone Deep Conditional Props

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Edg/87.0.664.60

Browser: Chrome 87

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Lodash	368648.7 Ops/sec
Custom	0.0 Ops/sec
Stringify parse	259867.5 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...',
        test: [789, 456, 123],
        htest: [123, 456, 789],
    }
};

const manual = (obj) => ({
  ...obj.description && {
    description: obj.description,
  },
  ...obj.myBoolean && {
    myBoolean: obj.myBoolean,
  },
  ...obj.myNumber && {
    myNumber: obj.myNumber,
  },
  ...obj.jayson && {
    jayson: {...obj.jayson}
  }
});

Tests:

Lodash
const myCopy = _.cloneDeep(MyObject);
Custom
const myCopy = manual(MyObject);
Stringify parse
const myCopy = JSON.parse(JSON.stringify(MyObject));

Run results for: CloneDeep vs Custom Clone Deep Conditional Props

Lodash

Custom

Stringify parse