Benchmark: RecursiveDeepCopyTTTeam

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;

function recursiveDeepCopy(o) {
    var newO,
      i;
  
    if (typeof o !== 'object') {
      return o;
    }
    if (!o) {
      return o;
    }
  
    if ('[object Array]' === Object.prototype.toString.apply(o)) {
      newO = [];
      for (i = 0; i < o.length; i += 1) {
        newO[i] = recursiveDeepCopy(o[i]);
      }
      return newO;
    }
  
    newO = {};
    for (i in o) {
      if (o.hasOwnProperty(i)) {
        newO[i] = recursiveDeepCopy(o[i]);
      }
    }
    return newO;
  }

function recursiveDeepCopyTTTeam(o) {
  let newO;
  let i;

  if (typeof o !== 'object') {
    return o;
  }
  if (!o) {
    return o;
  }

  if (Object.prototype.toString.apply(o) === '[object Array]') {
    newO = [];
    for (i = 0; i < o.length; i += 1) {
      newO[i] = recursiveDeepCopy(o[i]);
    }
    return newO;
  }

  newO = {};
  Object.keys(o).forEach((key) => {
    newO[key] = recursiveDeepCopy(o[key]);
  });
  return newO;
}

Tests:

Loadash
myCopy = _.cloneDeep(MyObject);
JSON Parse
myCopy = JSON.parse(JSON.stringify(MyObject));
recursiveDeepCopy
myCopy = recursiveDeepCopy(MyObject);
recursiveDeepCopyTTTeam
myCopy = recursiveDeepCopyTTTeam(MyObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Loadash
JSON Parse
recursiveDeepCopy
recursiveDeepCopyTTTeam

Fastest: N/A

Slowest: N/A

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Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:124.0) Gecko/20100101 Firefox/124.0

Browser/OS: Firefox 124 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Loadash	771005.4 Ops/sec
JSON Parse	629910.3 Ops/sec
recursiveDeepCopy	4512345.0 Ops/sec
recursiveDeepCopyTTTeam	2783028.0 Ops/sec

RecursiveDeepCopyTTTeam (version: 0)

Comparing performance of: Loadash vs JSON Parse vs recursiveDeepCopy vs recursiveDeepCopyTTTeam

Created: one month ago by: Guest

Jump to the latest result

Loadash

JSON Parse

recursiveDeepCopy

recursiveDeepCopyTTTeam

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A