Run results for: Lodash cloneDeep vs structuredClone vs recursiveDeepCopy vs JSON clone 10kb json

Test name	Executions per second
✓ recursiveDeepCopy	34,455 Ops/sec
Json Clone	10,085 Ops/sec
Native structuredClone	9,711 Ops/sec
Lodash cloneDeep	4,543 Ops/sec
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...'
  },
  '10kbData': {"v":"4.8.0","meta":{"g":"LottieFiles AE 1.0.0","a":"","k":"","d":"","tc":""},"fr":24,"ip":0,"op":13,"w":1920,"h":1080,"nm":"Memory-Quote2-Land","ddd":0,"assets":[],"layers":[{"ddd":0,"ind":1,"ty":4,"nm":"Layer 7","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":-90,"ix":10},"p":{"a":0,"k":[1881.361,374.222,0],"ix":2},"a":{"a":0,"k":[-269.25,-364.002,0],"ix":1},"s":{"a":0,"k":[75,100,100],"ix":6}},"ao":0,"shapes":[{"ty":"gr","it":[{"ind":0,"ty":"sh","ix":1,"ks":{"a":1,"k":[{"t":0,"s":[{"i":[[0,0],[-45.968,15.004],[-103.629,-7.26],[-61.666,-72.221]],"o":[[36.695,-28.209],[97.244,-31.74],[103.629,7.26],[0,0]],"v":[[-336.636,52.976],[-208.147,-7.912],[96.474,-54.322],[336.636,55.716]],"c":true}],"h":1},{"t":4,"s":[{"i":[[0,0],[-45.968,15.004],[-103.629,-7.26],[-61.666,-72.221]],"o":[[36.695,-28.209],[97.244,-31.74],[103.629,7.26],[0,0]],"v":[[-336.636,52.976],[-214.147,-17.912],[104.474,-62.322],[360.636,65.716]],"c":true}],"h":1},{"t":8,"s":[{"i":[[0,0],[-45.968,15.004],[-103.629,-7.26],[-61.666,-72.221]],"o":[[36.695,-28.209],[97.244,-31.74],[103.629,7.26],[0,0]],"v":[[-326.636,58.976],[-214.147,-27.912],[118.474,-56.322],[368.636,67.716]],"c":true}],"h":1},{"t":12,"s":[{"i":[[0,0],[-45.968,15.004],[-103.629,-7.26],[-61.666,-72.221]],"o":[[36.695,-28.209],[97.244,-31.74],[103.629,7.26],[0,0]],"v":[[-326.636,58.976],[-198.147,-35.912],[148.474,-56.322],[368.636,67.716]],"c":true}],"h":1}],"ix":2,"x":"var $bm_rt;\n$bm_rt = valueAtTime($bm_mod(time, key(numKeys).time));"},"nm":"Path 1","mn":"ADBE Vector Shape - Group","hd":false},{"ty":"fl","c":{"a":0,"k":[0.929411764706,0.890196078431,0.827450980392,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":0,"k":[-281.25,-364.953],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Group 1","np":2,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":0,"op":13,"st":0,"bm":0},{"ddd":0,"ind":2,"ty":4,"nm":"Layer 2","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[968.877,550.26,0],"ix":2},"a":{"a":0,"k":[1.456,-1.205,0],"ix":1},"s":{"a":0,"k":[205,205,100],"ix":6}},"ao":0,"shapes":[{"ty":"gr","it":[{"ind":0,"ty":"sh","ix":1,"ks":{"a":1,"k":[{"t":0,"s":[{"i":[[-47.261,31.437],[-8.255,3.808],[-76.669,0.735],[-31.343,-13.495],[-26.732,-33.773],[32.905,-110.042],[90.622,-24.059],[92.12,17.006],[27.62,19.559],[9.674,70.435],[-18.606,51.725]],"o":[[7.45,-4.956],[70.657,-32.595],[33.978,-0.326],[39.06,16.818],[70.672,89.286],[-27.509,91.999],[-90.622,24.058],[-33.007,-6.093],[-56.97,-40.344],[-7.539,-54.888],[18.724,-52.052]],"v":[[-217.06,-253.78],[-193.508,-266.969],[34.552,-305.399],[134.643,-289.893],[261.099,-199.73],[323.769,110.638],[120.44,291.295],[-158.09,287.922],[-254.544,236.922],[-335.601,47.471],[-314.371,-117.504]],"c":true}],"h":1},{"t":4,"s":[{"i":[[-47.261,31.437],[-8.255,3.808],[-76.669,0.735],[-31.343,-13.495],[-26.732,-33.773],[32.905,-110.042],[90.622,-24.059],[92.12,17.006],[27.62,19.559],[9.674,70.435],[-18.606,51.725]],"o":[[7.45,-4.956],[70.657,-32.595],[33.978,-0.326],[39.06,16.818],[70.672,89.286],[-27.509,91.999],[-90.622,24.058],[-33.007,-6.093],[-56.97,-40.344],[-7.539,-54.888],[18.724,-52.052]],"v":[[-217.06,-253.78],[-193.508,-266.969],[34.552,-305.399],[144.643,-293.893],[271.099,-195.73],[323.769,110.638],[134.44,305.295],[-158.09,287.922],[-254.544,236.922],[-343.601,51.471],[-314.371,-117.504]],"c":true}],"h":1},{"t":8,"s":[{"i":[[-50.421,26.07],[-8.623,2.881],[-76.288,-7.67],[-29.676,-16.848],[-22.871,-36.499],[44.764,-105.774],[92.712,-13.984],[89.702,26.997],[25.31,22.468],[1.898,71.071],[-24.162,49.375]],"o":[[7.948,-4.11],[73.803,-24.657],[33.809,3.399],[36.982,20.996],[60.464,96.492],[-37.424,88.431],[-92.712,13.984],[-32.141,-9.673],[-52.206,-46.343],[-1.479,-55.384],[24.315,-49.687]],"v":[[-187.073,-276.292],[-162.217,-286.821],[69.556,-307.982],[176.847,-276.531],[297.092,-158.482],[302.569,139.192],[101.052,303.932],[-179.814,274.61],[-278.098,207.349],[-336.299,13.256],[-298.73,-151.499]],"c":true}],"h":1},{"t":12,"s":[{"i":[[-50.421,26.07],[-8.623,2.881],[-76.288,-7.67],[-29.676,-16.848],[-22.871,-36.499],[44.764,-105.774],[92.712,-13.984],[89.702,26.997],[25.31,22.468],[1.898,71.071],[-24.162,49.375]],"o":[[7.948,-4.11],[73.803,-24.657],[33.809,3.399],[36.982,20.996],[60.464,96.492],[-37.424,88.431],[-92.712,13.984],[-32.141,-9.673],[-52.206,-46.343],[-1.479,-55.384],[24.315,-49.687]],"v":[[-187.073,-276.292],[-162.217,-286.821],[69.556,-315.982],[188.847,-276.531],[305.092,-152.482],[288.569,171.192],[73.052,301.932],[-179.814,274.61],[-278.098,207.349],[-342.299,7.256],[-298.73,-151.499]],"c":true}],"h":1}],"ix":2,"x":"var $bm_rt;\n$bm_rt = valueAtTime($bm_mod(time, key(numKeys).time));"},"nm":"Path 1","mn":"ADBE Vector Shape - Group","hd":false},{"ty":"fl","c":{"a":0,"k":[0.929411764706,0.890196078431,0.827450980392,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":0,"k":[0,0],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Group 1","np":2,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":0,"op":13,"st":0,"bm":0},{"ddd":0,"ind":3,"ty":4,"nm":"Layer 6","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[68.5,734.5,0],"ix":2},"a":{"a":0,"k":[88.5,674.5,0],"ix":1},"s":{"a":0,"k":[100,108,100],"ix":6}},"ao":0,"shapes":[{"ty":"gr","it":[{"ind":0,"ty":"sh","ix":1,"ks":{"a":1,"k":[{"t":0,"s":[{"i":[[0,0],[-23.604,23.519],[7.934,92.571],[49.672,80.029],[32.472,24.032]],"o":[[31.158,-13.442],[67.5,-67.258],[-7.934,-92.571],[-20.898,-33.671],[0,0]],"v":[[-89,335],[3.528,279.01],[89.64,21.209],[-7.28,-239.277],[-91,-335]],"c":false}],"h":1},{"t":4,"s":[{"i":[[0,0],[-23.604,23.519],[7.934,92.571],[49.672,80.029],[32.472,24.032]],"o":[[31.158,-13.442],[67.501,-67.258],[-7.934,-92.571],[-20.898,-33.671],[0,0]],"v":[[-117,361],[11.528,281.01],[99.64,27.209],[12.72,-235.277],[-109,-339]],"c":false}],"h":1},{"t":8,"s":[{"i":[[0,0],[-23.604,23.519],[7.934,92.571],[49.672,80.029],[32.472,24.032]],"o":[[31.158,-13.442],[67.5,-67.258],[-7.934,-92.571],[-20.898,-33.671],[0,0]],"v":[[-103,333],[23.528,271.01],[91.64,-2.791],[-1.28,-223.277],[-105,-327]],"c":false}],"h":1},{"t":12,"s":[{"i":[[0,0],[-23.604,23.519],[7.934,92.571],[49.672,80.029],[32.472,24.032]],"o":[[31.158,-13.442],[67.5,-67.258],[-7.934,-92.571],[-20.898,-33.671],[0,0]],"v":[[-107,329],[3.528,279.01],[71.64,27.209],[4.72,-225.277],[-91,-335]],"c":false}],"h":1}],"ix":2,"x":"var $bm_rt;\n$bm_rt = valueAtTime($bm_mod(time, key(numKeys).time));"},"nm":"Path 1","mn":"ADBE Vector Shape - Group","hd":false},{"ty":"st","c":{"a":0,"k":[0.929411764706,0.890196078431,0.827450980392,1],"ix":3},"o":{"a":0,"k":100,"ix":4},"w":{"a":0,"k":2,"ix":5},"lc":1,"lj":1,"ml":10,"bm":0,"nm":"Stroke 1","mn":"ADBE Vector Graphic - Stroke","hd":false},{"ty":"tr","p":{"a":0,"k":[91.499,674.5],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Group 1","np":2,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false},{"ty":"gr","it":[{"ind":0,"ty":"sh","ix":1,"ks":{"a":1,"k":[{"t":0,"s":[{"i":[[0,0],[-11.075,66.776],[18.478,42.921],[37.982,42.5]],"o":[[58.015,-40.618],[7.579,-45.697],[-22.458,-52.166],[0,0]],"v":[[-62.552,242.5],[60.606,59.897],[33.948,-100.647],[-54.552,-242.5]],"c":false}],"h":1},{"t":4,"s":[{"i":[[0,0],[-11.075,66.776],[18.478,42.921],[37.982,42.5]],"o":[[58.015,-40.618],[7.579,-45.697],[-22.458,-52.166],[0,0]],"v":[[-68.552,262.5],[68.606,69.897],[39.948,-112.647],[-68.552,-254.5]],"c":false}],"h":1},{"t":8,"s":[{"i":[[0,0],[-11.075,66.776],[18.478,42.921],[37.982,42.5]],"o":[[58.015,-40.618],[7.579,-45.697],[-22.458,-52.166],[0,0]],"v":[[-62.552,242.5],[66.606,81.897],[29.948,-128.647],[-54.552,-242.5]],"c":false}],"h":1},{"t":12,"s":[{"i":[[0,0],[-11.075,66.776],[18.478,42.921],[37.982,42.5]],"o":[[58.015,-40.618],[7.579,-45.697],[-22.458,-52.166],[0,0]],"v":[[-62.552,242.5],[36.606,65.897],[33.948,-100.647],[-54.552,-242.5]],"c":false}],"h":1}],"ix":2,"x":"var $bm_rt;\n$bm_rt = valueAtTime($bm_mod(time, key(numKeys).time));"},"nm":"Path 1","mn":"ADBE Vector Shape - Group","hd":false},{"ty":"st","c":{"a":0,"k":[0.929411764706,0.890196078431,0.827450980392,1],"ix":3},"o":{"a":0,"k":100,"ix":4},"w":{"a":0,"k":2,"ix":5},"lc":1,"lj":1,"ml":10,"bm":0,"nm":"Stroke 1","mn":"ADBE Vector Graphic - Stroke","hd":false},{"ty":"tr","p":{"a":0,"k":[57.052,692],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Group 2","np":2,"cix":2,"bm":0,"ix":2,"mn":"ADBE Vector Group","hd":false},{"ty":"gr","it":[{"ind":0,"ty":"sh","ix":1,"ks":{"a":1,"k":[{"t":0,"s":[{"i":[[0,0],[-7.833,18.658],[49.863,63.714]],"o":[[17.668,-12.109],[30.578,-72.841],[0,0]],"v":[[-29.541,144],[14.811,88.368],[-23.542,-144]],"c":false}],"h":1},{"t":4,"s":[{"i":[[0,0],[-8.938,18.658],[56.897,63.714]],"o":[[20.161,-12.109],[34.891,-72.841],[0,0]],"v":[[-29.541,144],[21.067,88.368],[-22.695,-144]],"c":false}],"h":1},{"t":8,"s":[{"i":[[0,0],[-10.099,17.536],[73.501,68.5]],"o":[[17.668,-12.109],[47.148,-81.868],[0,0]],"v":[[-29.541,144],[14.811,88.368],[-23.542,-144]],"c":false}],"h":1},{"t":12,"s":[{"i":[[0,0],[-7.833,18.658],[49.863,63.714]],"o":[[17.668,-12.109],[30.578,-72.841],[0,0]],"v":[[-29.541,144],[20.811,82.368],[-33.542,-134]],"c":false}],"h":1}],"ix":2,"x":"var $bm_rt;\n$bm_rt = valueAtTime($bm_mod(time, key(numKeys).time));"},"nm":"Path 1","mn":"ADBE Vector Shape - Group","hd":false},{"ty":"st","c":{"a":0,"k":[0.929411764706,0.890196078431,0.827450980392,1],"ix":3},"o":{"a":0,"k":100,"ix":4},"w":{"a":0,"k":2,"ix":5},"lc":1,"lj":1,"ml":10,"bm":0,"nm":"Stroke 1","mn":"ADBE Vector Graphic - Stroke","hd":false},{"ty":"tr","p":{"a":0,"k":[24.041,701.5],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Group 3","np":2,"cix":2,"bm":0,"ix":3,"mn":"ADBE Vector Group","hd":false}],"ip":0,"op":13,"st":0,"bm":0},{"ddd":0,"ind":4,"ty":4,"nm":"Layer 1","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[960,539,0],"ix":2},"a":{"a":0,"k":[0,0,0],"ix":1},"s":{"a":0,"k":[100,100,100],"ix":6}},"ao":0,"shapes":[{"ty":"gr","it":[{"ind":0,"ty":"sh","ix":1,"ks":{"a":0,"k":{"i":[[0,0],[0,0],[0,0],[0,0]],"o":[[0,0],[0,0],[0,0],[0,0]],"v":[[960,541],[-960,541],[-960,-541],[960,-541]],"c":true},"ix":2},"nm":"Path 1","mn":"ADBE Vector Shape - Group","hd":false},{"ty":"fl","c":{"a":0,"k":[0.23137255013,0.341176480055,0.40000000596,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":0,"k":[0,0],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Group 1","np":2,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":0,"op":13,"st":0,"bm":0}],"markers":[]}
};

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;
  }
Run results for: Lodash cloneDeep vs structuredClone vs recursiveDeepCopy vs JSON clone 10kb json

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone

Lodash cloneDeep

Native structuredClone

recursiveDeepCopy

Json Clone
