Benchmark: lodash cloneDeep vs. JSON.parse(JSON.stringify()) vs. fastest-json-copy | On a Small Object -neww

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>
<script src='https://cdn.jsdelivr.net/npm/jsondiffpatch@0.4.1/dist/jsondiffpatch.umd.min.js'></script>
<script src='https://cdn.jsdelivr.net/npm/rfdc@1.3.0'></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;

var jsondiffpatchClone = jsondiffpatch.clone;
var rfdcClone = rfdc();

///////////////////////////////////////////////////////////////////
class ObjectUtils {
  static clone(obj) {
    let clone

    if (typeof obj !== 'object') {
      return obj
    }
    if (!obj) {
      return obj
    }
    if (Array.isArray(obj)) {
      clone = []
      for (let i = 0; i < obj.length; i += 1) {
        clone[i] = ObjectUtils.clone(obj[i])
      }
      return clone
    }

    clone = {}
    Object.keys(obj).forEach((key) => {
      if (Object.prototype.hasOwnProperty.call(obj, key)) {
        clone[key] = ObjectUtils.clone(obj[key])
      }
    })

    return clone
  }
}
var recursiveDeepCopy = ObjectUtils.clone
//////////////////////////////////////////////////////////////////
// Use https://www.npmjs.com/package/fastest-json-copy
// Instead of the code below! It is the same thing, just minified.
var isArray=Array.isArray;function fastestJsonCopy(r){if(!r)return r;if(isArray(r)){for(var e=[],o=r.length,t=0;t<o;t++)e.push(fastestJsonCopy(r[t]));return e}if("object"==typeof r){var y=Object.keys(r),a=(o=y.length,{});for(t=0;t<o;t++){var c=y[t];a[c]=fastestJsonCopy(r[c])}return a}return r}

Tests:

lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
JSON.parse(JSON.stringify())
myCopy = JSON.parse(JSON.stringify(MyObject));
recursiveDeepCopy
myCopy = recursiveDeepCopy(MyObject);
fastest-json-copy npm package
myCopy = fastestJsonCopy(MyObject);
jsondiffpatch.clone()
myCopy = jsondiffpatchClone(MyObject);
rfdc
myCopy = rfdcClone(MyObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash cloneDeep
JSON.parse(JSON.stringify())
recursiveDeepCopy
fastest-json-copy npm package
jsondiffpatch.clone()
rfdc

lodash cloneDeep vs. JSON.parse(JSON.stringify()) vs. fastest-json-copy | On a Small Object -neww (version: 1)

Comparing performance of: lodash cloneDeep vs JSON.parse(JSON.stringify()) vs recursiveDeepCopy vs fastest-json-copy npm package vs jsondiffpatch.clone() vs rfdc

Created: one year ago by: Guest

Jump to the latest result

lodash cloneDeep

JSON.parse(JSON.stringify())

recursiveDeepCopy

fastest-json-copy npm package

jsondiffpatch.clone()

rfdc

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results