Benchmark: Lodash clone vs cloneDeep

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,
  myDate: new Date(),
  myDate2: new Date(),
  myDate3: new Date(),
  myDate4: new Date(),
  myDate5: new Date(),
  myDate6: new Date(),
  myDate7: new Date(),
  myDate8: new Date(),
  myDate9: new Date(),
  myDate10: new Date(),
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  jayson2: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  jayson3: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  jayson4: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  jayson5: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  jayson6: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  jayson7: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  jayson8: {
    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);
Lodash clone
myCopy = _.clone(MyObject);
new Object
myCopy = {...MyObject}
Custom deep spread
myCopy = {...MyObject} myCopy.jayson = {...myCopy.jayson} myCopy.jayson2 = {...myCopy.jayson2} myCopy.jayson3 = {...myCopy.jayson3} myCopy.jayson4 = {...myCopy.jayson4} myCopy.jayson5 = {...myCopy.jayson5} myCopy.jayson6 = {...myCopy.jayson6} myCopy.jayson7 = {...myCopy.jayson7} myCopy.jayson7 = {...myCopy.jayson8}
Object assign
myCopy = Object.assign({}, MyObject)
Custom deep assign
myCopy = Object.assign({}, MyObject) myCopy.jayson = Object.assign({}, myCopy.jayson) myCopy.jayson2 = Object.assign({}, myCopy.jayson2) myCopy.jayson3 = Object.assign({}, myCopy.jayson3) myCopy.jayson4 = Object.assign({}, myCopy.jayson4) myCopy.jayson5 = Object.assign({}, myCopy.jayson5) myCopy.jayson6 = Object.assign({}, myCopy.jayson6) myCopy.jayson7 = Object.assign({}, myCopy.jayson7) myCopy.jayson7 = Object.assign({}, myCopy.jayson8)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Lodash clone
new Object
Custom deep spread
Object assign
Custom deep assign

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.157 Safari/537.36

Browser/OS: Chrome 74 on Windows

View result in a separate tab

Test name	Executions per second
Lodash cloneDeep	59972.8 Ops/sec
Lodash clone	284307.0 Ops/sec
new Object	4289890.0 Ops/sec
Custom deep spread	606092.3 Ops/sec
Object assign	574065.3 Ops/sec
Custom deep assign	202914.5 Ops/sec

Lodash clone vs cloneDeep (version: 0)

Comparing performance of: Lodash cloneDeep vs Lodash clone vs new Object vs Custom deep spread vs Object assign vs Custom deep assign

Created: 4 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Lodash clone

new Object

Custom deep spread

Object assign

Custom deep assign

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A