Run results for: Lodash cloneDeep vs for loop vs JSON parse vs recursive clone deep vs recursive reduce clone deep 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

Browser: Chrome 90

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Lodash cloneDeep	5705.6 Ops/sec
JSON parse	11008.2 Ops/sec
For loop	384649.9 Ops/sec
Recursive clone deep	13984.5 Ops/sec
Recursive reduce clone deep	912893.3 Ops/sec
Custom Deep Copy	7976.2 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var obj = {
  "ORGDATA": [
    {
      "Source": "C50.100",
      "TimeStamp": "20200723071251",
      "User": "DEVELOPER"
    },
    {
      "SOLUTION": {
        "NAME": "Z_CUST_US",
        "ORGUNITS": {
          "CCD_PRIMARY": {
            "DATA": [
              {
                "BUKRS_TGT": "1710",
                "BUKRS_SRC": "",
                "BUTXT": "Company Code 1710",
                "LAND1": "US",
                "ADRNR": "0000022835"
              }
            ]
          },
          "CMP": {
            "DATA": [
              {
                "RCOMP_TGT": "001710",
                "RCOMP_SRC": "",
                "NAME1": "Company 1710",
                "CNTRY": "US"
              }
            ]
          },
          "DCH": {
            "DATA": [
              {
                "VTWEG_TGT": "10",
                "VTWEG_SRC": "",
                "VTEXT": "Direct Sales"
              }
            ]
          },
          "DIV": {
            "DATA": [
              {
                "SPART_TGT": "00",
                "SPART_SRC": "",
                "VTEXT": "Product Division 00"
              }
            ]
          },
          "EWN": {
            "DATA": [
              {
                "LGNUM_TGT": "1750",
                "LGNUM_SRC": "",
                "LNUMT": "Warehouse"
              }
            ]
          },
          "PLT": {
            "DATA": [
              {
                "WERKS_TGT": "1710",
                "WERKS_SRC": "",
                "NAME1": "Plant 1 US",
                "LAND1": "US",
                "ADRNR": "0000022836"
              }
            ]
          },
          "POR": {
            "DATA": [
              {
                "EKORG_TGT": "1710",
                "EKORG_SRC": "",
                "EKOTX": "Purch. Org. 1710"
              }
            ]
          },
          "SGR": {
            "DATA": [
              {
                "VKGRP_TGT": "170",
                "VKGRP_SRC": "",
                "BEZEI": "Sales Group 170"
              }
            ]
          },
          "SOF": {
            "DATA": [
              {
                "VKBUR_TGT": "170",
                "VKBUR_SRC": "",
                "BEZEI": "Sales Office 170",
                "ADRNR": "0000022838"
              }
            ]
          },
          "SOR": {
            "DATA": [
              {
                "VKORG_TGT": "1710",
                "VKORG_SRC": "",
                "VTEXT": "Dom. Sales Org US",
                "LAND1": "US",
                "ADRNR": "0000022837"
              }
            ]
          },
          "SPT_CUST_CONSMT": {
            "DATA": [
              {
                "VSTEL_TGT": "171C",
                "VSTEL_SRC": "",
                "VTEXT": "Shipping Point 171C",
                "ALAND": "US",
                "ADRNR": "0000022855"
              }
            ]
          },
          "SPT_RAW_MATNR": {
            "DATA": [
              {
                "VSTEL_TGT": "171R",
                "VSTEL_SRC": "",
                "VTEXT": "Shipping Point 171R",
                "ALAND": "US",
                "ADRNR": "0000022842"
              }
            ]
          },
          "SPT_STD": {
            "DATA": [
              {
                "VSTEL_TGT": "1710",
                "VSTEL_SRC": "",
                "VTEXT": "Shipping Point 1710",
                "ALAND": "US",
                "ADRNR": "0000022839"
              }
            ]
          },
          "STL_3RD_PARTY_WMS": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171I",
                "LGORT_SRC": "",
                "LGOBE": "3rd Party WMS",
                "LAND1": "US",
                "ADRNR": "0000022856"
              }
            ]
          },
          "STL_3RD_PARTY_WMS_RET": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171K",
                "LGORT_SRC": "",
                "LGOBE": "3rd WMS - Return",
                "LAND1": "US",
                "ADRNR": "0000022857"
              }
            ]
          },
          "STL_DAY_TANK": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171T",
                "LGORT_SRC": "",
                "LGOBE": "Day Tank",
                "LAND1": "US",
                "ADRNR": "0000022860"
              }
            ]
          },
          "STL_EWM_INT_AFS": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "173S",
                "LGORT_SRC": "",
                "LGOBE": "EWM Int AFS",
                "LAND1": "US",
                "ADRNR": ""
              }
            ]
          },
          "STL_EWM_INT_ROD": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "173D",
                "LGORT_SRC": "",
                "LGOBE": "EWM Int ROD",
                "LAND1": "US",
                "ADRNR": ""
              }
            ]
          },
          "STL_KANBAN": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171E",
                "LGORT_SRC": "",
                "LGOBE": "KANBAN",
                "LAND1": "US",
                "ADRNR": "0000022845"
              }
            ]
          },
          "STL_MAIN_TANK": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171Q",
                "LGORT_SRC": "",
                "LGOBE": "Main Tank",
                "LAND1": "US",
                "ADRNR": "0000022859"
              }
            ]
          },
          "STL_RAW_MATNR": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171C",
                "LGORT_SRC": "",
                "LGOBE": "Raw Materials",
                "LAND1": "US",
                "ADRNR": "0000022843"
              }
            ]
          },
          "STL_RET": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171R",
                "LGORT_SRC": "",
                "LGOBE": "Returns",
                "LAND1": "US",
                "ADRNR": "0000022844"
              }
            ]
          },
          "STL_STD_A": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171A",
                "LGORT_SRC": "",
                "LGOBE": "Std. storage 1",
                "LAND1": "US",
                "ADRNR": "0000022840"
              },
              {
                "WERKS": "1710",
                "LGORT_TGT": "171J",
                "LGORT_SRC": "",
                "LGOBE": "3rd WMS - Produc",
                "LAND1": "US",
                "ADRNR": ""
              },
              {
                "WERKS": "1710",
                "LGORT_TGT": "171F",
                "LGORT_SRC": "",
                "LGOBE": "Residual SLoc",
                "LAND1": "US",
                "ADRNR": "0000022861"
              },
              {
                "WERKS": "1710",
                "LGORT_TGT": "171M",
                "LGORT_SRC": "",
                "LGOBE": "DMC SLoc",
                "LAND1": "US",
                "ADRNR": "0000022862"
              }
            ]
          },
          "STL_STD_B": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "171B",
                "LGORT_SRC": "",
                "LGOBE": "Std. storage 2",
                "LAND1": "US",
                "ADRNR": "0000022841"
              }
            ]
          },
          "STL_WAREHOUSE": {
            "DATA": [
              {
                "WERKS": "1710",
                "LGORT_TGT": "175W",
                "LGORT_SRC": "",
                "LGOBE": "Warehouse",
                "LAND1": "US",
                "ADRNR": "0000022858"
              }
            ]
          },
          "WHN_3RD_PARTY": {
            "DATA": [
              {
                "LGNUM_TGT": "172",
                "LGNUM_SRC": "",
                "LNUMT": "3rd Party WM Integration"
              }
            ]
          },
          "WHN_CLOUD": {
            "DATA": [
              {
                "LGNUM_TGT": "175",
                "LGNUM_SRC": "",
                "LNUMT": "Warehouse"
              }
            ]
          },
          "WHN_EXTENDED": {
            "DATA": [
              {
                "LGNUM_TGT": "173",
                "LGNUM_SRC": "",
                "LNUMT": "EWM Warehouse Integration"
              }
            ]
          },
          "SLA": {
            "DATA": [
              {
                "VKORG_TGT": "1710",
                "VKORG_SRC": "",
                "VTWEG_TGT": "10",
                "VTWEG_SRC": "",
                "SPART_TGT": "00",
                "SPART_SRC": ""
              }
            ]
          },
          "PLTSORDCH": {
            "DATA": [
              {
                "VKORG_TGT": "1710",
                "VKORG_SRC": "",
                "VTWEG_TGT": "10",
                "VTWEG_SRC": "",
                "WERKS_TGT": "1710",
                "WERKS_SRC": ""
              }
            ]
          }
        },
        "RELATIONS": {
          "CCD_PRIMARY__CMP": [
            {
              "BUKRS": "1710",
              "RCOMP": "001710"
            }
          ],
          "PLT__CCD_PRIMARY": [
            {
              "WERKS": "1710",
              "BUKRS": "1710"
            }
          ],
          "STL_3RD_PARTY_WMS__PLT": [
            {
              "LGORT": "171I",
              "WERKS": "1710"
            }
          ],
          "STL_3RD_PARTY_WMS_RET__PLT": [
            {
              "LGORT": "171K",
              "WERKS": "1710"
            }
          ],
          "STL_DAY_TANK__PLT": [
            {
              "LGORT": "171T",
              "WERKS": "1710"
            }
          ],
          "STL_EWM_INT_AFS__PLT": [
            {
              "LGORT": "173S",
              "WERKS": "1710"
            }
          ],
          "STL_EWM_INT_ROD__PLT": [
            {
              "LGORT": "173D",
              "WERKS": "1710"
            }
          ],
          "STL_KANBAN__PLT": [
            {
              "LGORT": "171E",
              "WERKS": "1710"
            }
          ],
          "STL_MAIN_TANK__PLT": [
            {
              "LGORT": "171Q",
              "WERKS": "1710"
            }
          ],
          "STL_RAW_MATNR__PLT": [
            {
              "LGORT": "171C",
              "WERKS": "1710"
            }
          ],
          "STL_RET__PLT": [
            {
              "LGORT": "171R",
              "WERKS": "1710"
            }
          ],
          "STL_STD_A__PLT": [
            {
              "LGORT": "171A",
              "WERKS": "1710"
            },
            {
              "LGORT": "171J",
              "WERKS": "1710"
            },
            {
              "LGORT": "171F",
              "WERKS": "1710"
            },
            {
              "LGORT": "171M",
              "WERKS": "1710"
            }
          ],
          "STL_STD_B__PLT": [
            {
              "LGORT": "171B",
              "WERKS": "1710"
            }
          ],
          "STL_WAREHOUSE__PLT": [
            {
              "LGORT": "175W",
              "WERKS": "1710"
            }
          ],
          "SOR__CCD_PRIMARY": [
            {
              "VKORG": "1710",
              "BUKRS": "1710"
            }
          ],
          "DIV__SOR": [
            {
              "SPART": "00",
              "VKORG": "1710"
            }
          ],
          "SOF__SLA": [
            {
              "VKBUR": "170",
              "VKORG": "1710",
              "VTWEG": "10",
              "SPART": "00"
            }
          ],
          "SGR__SOF": [
            {
              "VKGRP": "170",
              "VKBUR": "170"
            }
          ],
          "SLC__PLT": [
            {
              "VKORG": "1710",
              "VTWEG": "10",
              "WERKS": "1710"
            }
          ],
          "SOR__SLA": [
            {
              "VKORG": "1710",
              "VTWEG": "10",
              "SPART": "00"
            }
          ],
          "SPT_CUST_CONSMT__PLT": [
            {
              "VSTEL": "171C",
              "WERKS": "1710"
            }
          ],
          "SPT_RAW_MATNR__PLT": [
            {
              "VSTEL": "171R",
              "WERKS": "1710"
            }
          ],
          "SPT_STD__PLT": [
            {
              "VSTEL": "1710",
              "WERKS": "1710"
            }
          ],
          "POR__PLT": [
            {
              "EKORG": "1710",
              "WERKS": "1710"
            }
          ],
          "WHN_3RD_PARTY__STL_3RD_PARTY_WMS": [
            {
              "LGNUM": "172",
              "WERKS": "1710",
              "LGORT": "171I"
            }
          ],
          "WHN_3RD_PARTY__STL_3RD_PARTY_WMS_RET": [
            {
              "LGNUM": "172",
              "WERKS": "1710",
              "LGORT": "171K"
            }
          ],
          "WHN_3RD_PARTY__STL_STD_A": [
            {
              "LGNUM": "172",
              "WERKS": "1710",
              "LGORT": "171J"
            }
          ],
          "WHN_CLOUD__STL_WAREHOUSE": [
            {
              "LGNUM": "175",
              "WERKS": "1710",
              "LGORT": "175W"
            }
          ],
          "WHN_EXTENDED__STL_EWM_INT_AFS": [
            {
              "LGNUM": "173",
              "WERKS": "1710",
              "LGORT": "173S"
            }
          ],
          "WHN_EXTENDED__STL_EWM_INT_ROD": [
            {
              "LGNUM": "173",
              "WERKS": "1710",
              "LGORT": "173D"
            }
          ],
          "WHN_CLOUD__EWN": [
            {
              "WHN_CLOUD_LGNUM": "175",
              "EWN_LGNUM": "1750"
            }
          ]
        }
      }
    }
  ]
};

var deepClone = function(obj) {
    var out = null;

    if (Array.isArray(obj)) {
        out = [];
        for (var index = 0; index < obj.length; ++index) {
            var subArray = obj[index];
            out.push((typeof subArray === 'object') ? deepClone(subArray) : subArray);
        }
    } else {
        out = {};
        for (var key in obj) {
            var subObject = obj[key];
            out[key] = (typeof subObject === 'object') ? deepClone(subObject) : subObject;
        }
    }
    return out;
};

function cloneArray(value) {
    var newArray;
    if (value && value.length) {
        newArray = [];
        for (var i = 0; i < value.length; i++) {
            if (typeof value[i] === 'object') {
                newArray[i] = Array.isArray(value[i]) ? cloneArray(value[i]) : cloneObject(value[i]);
            } else {
                newArray[i] = value[i];
            }
        }
    } else if (value === null) {
        newArray = null;
    }
    return newArray;
}

function cloneObject(value) {
    var newObject;
    if (value && typeof value === 'object' && Object.keys(value).length > 0) {
        newObject = {};
        for (var key in value) {
            if (typeof value[key] === 'object') {
                newObject[key] = Array.isArray(value) ? cloneArray(value[key]) : cloneObject(value[key]);
            } else {
                newObject[key] = value[key];
            }
        }
    } else if (value && typeof value === 'object' && Object.keys(value).length === 0) {
        newObject = {};
    } else if (value === null) {
        newObject = null;
    }
    return newObject;
}

function reduceDeepClone(obj) {
    return Object.keys(obj).reduce((v, d) => Object.assign(v, {
        [d]: (obj[d].constructor === Object) ? reduceDeepClone(obj[d]) : obj[d]
    }), {});
}

function deepCopy(inObject) {
    let outObject, value, key

    if (typeof inObject !== "object" || inObject === null) {
        return inObject // Return the value if inObject is not an object
    }

    // Create an array or object to hold the values
    outObject = Array.isArray(inObject) ? [] : {}

    for (key in inObject) {
        value = inObject[key]

        // Recursively (deep) copy for nested objects, including arrays
        outObject[key] = deepCopy(value)
    }

    return outObject
}

Tests:

Lodash cloneDeep
testCopy = _.cloneDeep(obj);
JSON parse
testCopy = JSON.parse(JSON.stringify(obj));
For loop
testCopy = cloneObject(obj);
Recursive clone deep
testCopy = deepClone(obj);
Recursive reduce clone deep
testCopy = reduceDeepClone(obj);
Custom Deep Copy
testCopy = deepCopy(obj);

Run results for: Lodash cloneDeep vs for loop vs JSON parse vs recursive clone deep vs recursive reduce clone deep 2

compare object deep copy/clone methods

Lodash cloneDeep

JSON parse

For loop

Recursive clone deep

Recursive reduce clone deep

Custom Deep Copy