Benchmark: deepclone vs deepfreeze

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...'
  }
};

function deepFreeze(object) {
    for (const v of Array.isArray(object) ? object : Object.values(object)) {
        if (v && typeof v === 'object') {
            deepFreeze(v);
        }
    }
    Object.freeze(object);
    return object;
}

function deepClone(object) {
    if (Array.isArray(object)) {
      const len = object.length;
      const result = new Array(len);
      for (let i = 0; i < len; ++i) {
        const v = object[i];
        result[i] = v && typeof v === 'object' ? deepClone(v) : v;
      }
      return result;
    } else {
      const result = {};
      for (const k in object) {
        const v = object[k];
        result[k] = v && typeof v === 'object' ? deepClone(v) : v;
      }
      return result;
    }
}

var myCopy = null;

Tests:

Lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
Json clone
myCopy = JSON.parse(JSON.stringify(MyObject));
freeze and destructure
Object.freeze(MyObject); myCopy = { ...MyObject };
deepClone
myCopy = deepClone(MyObject)
deepFreeze
deepFreeze(MyObject); myCopy = MyObject

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Json clone
freeze and destructure
deepClone
deepFreeze

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:107.0) Gecko/20100101 Firefox/107.0

Browser/OS: Firefox 107 on Ubuntu

View result in a separate tab

Test name	Executions per second
Lodash cloneDeep	1091280.0 Ops/sec
Json clone	517982.9 Ops/sec
freeze and destructure	4550597.0 Ops/sec
deepClone	5031898.0 Ops/sec
deepFreeze	1623515.0 Ops/sec

deepclone vs deepfreeze (version: 0)

Comparing performance of: Lodash cloneDeep vs Json clone vs freeze and destructure vs deepClone vs deepFreeze

Created: one year ago by: Guest

Jump to the latest result

Lodash cloneDeep

Json clone

freeze and destructure

deepClone

deepFreeze

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A