Run results for: 123456qweess

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser: Chrome 106

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
loadash	18688.7 Ops/sec
struct	21068.4 Ops/sec
recursuve	26523.1 Ops/sec
json clone	31557.3 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 MyObject = {
    "id": null,
    "name": "Multi Drop Bucket322101410",
    "grade": "Grade 6",
    "status": undefined,
    "user_id": 2,
    "version": 2,
    "grade_id": 149,
    "item_json": {
        "uuid": "88ed52c-db67-a72e-5418-a08728b171b",
        "dropSlot": true,
        "matchList": [
            {
                "id": "163140-7bbd-ea8b-d8a-2b4ca2b5572",
                "header": "<p>Category1</p>",
                "noOfDropSlots": 2
            },
            {
                "id": "4384ef8-006e-def8-c11-1d7e5b87fb",
                "header": "<p>Category2</p>",
                "noOfDropSlots": 3
            }
        ],
        "optionList": [
            {
                "id": "1c7a2fd-0574-04d5-48dc-135820a5",
                "header": "<p>Input1</p>",
                "dragOptionList": [
                    {
                        "id": "eeac105-0d43-3e6d-b24a-7807ed84bd6",
                        "optionText": "<p>Option1</p>"
                    },
                    {
                        "id": "876ae37-dfa6-d221-5d61-0ec718c1dc",
                        "optionText": "<p>Option2</p>"
                    }
                ]
            },
            {
                "id": "0732c48-427-62e-2e4-3bd31764e36c",
                "header": "<p>Input2</p>",
                "dragOptionList": [
                    {
                        "id": "28da14-77af-116a-a46d-32cfbc3004",
                        "optionText": "<p>Option3</p>"
                    },
                    {
                        "id": "f8e507-53d-4b8-3315-d128a6587a04",
                        "optionText": "<p>Option4</p>"
                    }
                ]
            }
        ],
        "stickyDrop": true,
        "stemContent": "<p>click&nbsp;<span class=\"text-tag-accessibility\" data-access-id=\"cke-atp-e8d1aca531b57b754cb45c7e264032404\"> Sound</span></p><p>&nbsp;</p>",
        "itemTypeCode": "MDB",
        "minItemWidth": 8,
        "minItemHeight": 9,
        "correctResponse": [
            {
                "id": "163140-7bbd-ea8b-d8a-2b4ca2b5572",
                "values": [
                    "eeac105-0d43-3e6d-b24a-7807ed84bd6"
                ]
            },
            {
                "id": "4384ef8-006e-def8-c11-1d7e5b87fb",
                "values": []
            }
        ]
    },
    "max_score": 34,
    "rationale": {
        "optionList": [
            {
                "id": "163140-7bbd-ea8b-d8a-2b4ca2b5572",
                "rationaleText": ""
            },
            {
                "id": "4384ef8-006e-def8-c11-1d7e5b87fb",
                "rationaleText": ""
            }
        ]
    },
    "accessArray": [
        {
            "key": "cke-atp-e8d1aca531b57b754cb45c7e264032404",
            "field": null,
            "signed": {
                "Signed_English": {
                    "filePath": "/media/15009/accessibility/item/4004800/86a8fc-234-d4ec-70d0-d41aa34f1231/Lightbulbs%20Moving%20in%20the%20Wind%20%281%29"
                }
            },
            "spoken": {
                "textAndGraphics": {
                    "soundPath": "media/15009/accessibility/item/4004800/1717-1187-3ec4-db83-46fcc2f62f1e.mp3",
                    "synthSpeech": " Sound",
                    "defaultOrder": 1,
                    "onDemandOrder": 1
                }
            },
            "braille": {
                "English_Braille": {
                    "filePath": "/media/15009/accessibility/item/4004800/4552544-f7c6-fa8a-f63-2b5fac5a4c6c/brfsample"
                }
            },
            "keyword": {
                "DE": "Text6"
            },
            "accommodation_ids": [
                4006886,
                4006887,
                4006888,
                4006889
            ]
        }
    ],
    "description": null,
    "previous_id": null,
    "content_area": "English Language Arts",
    "created_date": "2022-10-14T09:36:02.958589+00:00",
    "item_type_id": 3000168,
    "scoring_data": {
        "quotas": [],
        "scores": [
            {
                "id": "163140-7bbd-ea8b-d8a-2b4ca2b5572",
                "score": "0",
                "value": "eeac105-0d43-3e6d-b24a-7807ed84bd6"
            },
            {
                "id": "4384ef8-006e-def8-c11-1d7e5b87fb",
                "score": "0",
                "value": null
            }
        ],
        "rubricId": null,
        "clusterScoring": null,
        "rubricViewedBy": null,
        "allSelectedZero": null,
        "rubricDirections": ""
    },
    "content_codes": [
        "ELA.6.C1"
    ],
    "media_library": [],
    "revision_text": null,
    "task_user_ids": null,
    "item_type_code": "MDB",
    "item_type_name": "Multiple Drop Bucket",
    "scoring_needed": true,
    "workflow_tasks": null,
    "workflow_users": null,
    "attributes_list": [
        {
            "enemies": null,
            "friends": null,
            "group_info": {
                "grade_id": 149,
                "content_area_id": 85,
                "framework_type_ids": [
                    411
                ]
            },
            "item_usage": 39,
            "content_codes": [
                {
                    "id": 22836,
                    "selection": true,
                    "is_primary": true,
                    "is_secondary": false,
                    "framework_type_id": 411
                }
            ],
            "testing_program": [
                83
            ],
            "cognitive_category": 354,
            "cognitive_taxonomy": 282,
            "estimate_difficulty": 386,
            "multiple_primary_content_code_needed": [
                {
                    "value": true,
                    "framework_type_ids": []
                }
            ]
        }
    ],
    "cluster_scoring": null,
    "content_area_id": 85,
    "created_user_id": 2,
    "framework_types": [
        "SBAC-ELA"
    ],
    "previous_source": null,
    "testing_program": "Practice",
    "variant_type_id": null,
    "workflow_status": null,
    "content_code_ids": [
        22836
    ],
    "item_status_code": "final",
    "item_status_name": "Final",
    "workflow_task_id": null,
    "workflow_user_id": null,
    "created_user_name": "User Two",
    "is_latest_version": true,
    "readable_response": null,
    "scoring_method_id": 62,
    "accessibility_json": null,
    "framework_type_ids": [
        411
    ],
    "testing_program_id": "83",
    "workflow_task_skip": null,
    "scoring_method_code": "correct_only",
    "workflow_content_id": null,
    "workflow_process_id": null,
    "accessibility_details": null,
    "assessment_program_id": 15009,
    "workflow_content_type": null,
    "workflow_graphic_path": null,
    "workflow_process_name": null,
    "assessment_program_ids": null,
    "assessment_program_code": null,
    "item_type_category_code": "question",
    "item_type_category_name": "Question",
    "workflow_content_type_id": null,
    "workflow_content_user_ids": null,
    "workflow_process_description": null
};

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;
  }

Tests:

loadash
myCopy = _.cloneDeep(MyObject);
struct
myCopy = structuredClone(MyObject);
recursuve
myCopy = recursiveDeepCopy(MyObject);
json clone
myCopy = JSON.parse(JSON.stringify(MyObject));

Run results for: 123456qweess

hey

loadash

struct

recursuve

json clone