Run results for: structured clone vs JSON

Run details:
User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Mobile/15E148 Safari/604.1
Browser: Mobile Safari 15
Operating system: iOS 15.4.1
Device Platform: Mobile
Date tested: 2 years ago
Test name	Executions per second
structuredClone	26217.0 Ops/sec
JSON	33180.3 Ops/sec
Script Preparation code:
var data = {
    "listing": {
        "id": 1026301,
        "isTriplemintListing": true,
        "listingAgreement": "exclusive",
        "price": 490000,
        "priceChange": null,
        "private": null,
        "status": "available",
        "urlSlug": "1026301-Bergen-St-5-A-Crown-Heights-Brooklyn-NY-11216",
        "videoUrl": "https://youtu.be/SNwAjo7dUPs",
        "__typename": "Listing",
        "availableDate": "2020-06-26",
        "broker": {
            "id": 107,
            "name": "Triplemint",
            "phone": "(866) 432-5956",
            "address": "",
            "license": "",
            "website": "https://triplemint.com"
        },
        "buildingType": "condo",
        "commission": "3.00",
        "commissionAddendum": null,
        "commonChargesMaintenanceFee": "235.00",
        "description": "MINT condition condo at an unbeatable price. Live or invest where Crown Heights, Clinton Hill, Bedford Stuyvesant, and Prospect Heights collide!\n\nThis modern starter apartment has a bright, airy feel due to its Southern exposure. The proportions of the living space are ideal with plenty of space for comfortable living, sleeping, and dining. The large open kitchen features black granite countertops, glass subway tile backsplash, a dishwasher, and an in-unit washer/dryer. The bathroom is also super-sized for a studio, with a deep soak tub. The apartment features a remote-controlled split heating/cooling system and a video intercom system.\n\nThe Bergen House is a pet-friendly condo building with bike storage and a large, community roof deck perfect for those summer nights. \n\nThe neighborhood boasts an exorbitant amount of restaurants and cafés, like The Crabby Shack, Banhmigos, Little Zelda Coffee, Barboncino, or Mayfield. You&#x27;ll also live near the Brooklyn Botanical Garden, Brooklyn Museum, and the Greenmarket at Grand Army Plaza. You will love where you live.",
        "displayCity": "Brooklyn",
        "financing": "90.00",
        "floorPlanImagePaths": [
            "https://images.triplemint.com/production/images/listing/1026301/v1234/original/listing_1026301_0_fp"
        ],
        "internalDescription": "MINT condition condo",
        "listedDate": "2020-06-26",
        "maxLeaseTerm": null,
        "minLeaseTerm": null,
        "mlsId": "1884122",
        "monthlyTaxes": "426.00",
        "petPolicy": "pets allowed",
        "photoImagePaths": [
            "https://images.triplemint.com/production/images/listing/1026301/v1234/original/listing_1026301_0",
            "https://images.triplemint.com/production/images/listing/1026301/v1234/original/listing_1026301_1"
        ],
        "rentCoBroke": null,
        "rentCollectYourOwn": null,
        "rentFree": null,
        "rentNoFee": null,
        "rentOwnerPays": null,
        "securityDeposit": null,
        "type": "SALE",
        "virtualTourUrl": "https://my.matterport.com/show/?m=rJFfVXGsfGE",
        "address": {
            "address": "954 Bergen St",
            "id": 6625,
            "__typename": "Address"
        },
        "agents": [
            {
                "email": "brandon@triplemint.com",
                "firstName": "Brandon",
                "id": 345818,
                "lastName": "Marianne Lee",
                "license": "123456789",
                "order": 1,
                "phone": "917.521.9022",
                "profileImageUrl": "https://images.triplemint.com/production/images/user/345818/x700/7acefc29-4bdd-4285-9cde-b5f708917a22.jpeg"
            }
        ],
        "amenities": {
            "nodes": [
                {
                    "amenity": {
                        "id": 12,
                        "name": "laundry in unit",
                        "__typename": "Amenity"
                    },
                    "__typename": "ListingsAmenity"
                },
                {
                    "amenity": {
                        "id": 15,
                        "name": "dishwasher",
                        "__typename": "Amenity"
                    },
                    "__typename": "ListingsAmenity"
                },
                {
                    "amenity": {
                        "id": 157,
                        "name": "wood floors",
                        "__typename": "Amenity"
                    },
                    "__typename": "ListingsAmenity"
                }
            ],
            "__typename": "ListingsAmenitiesConnection"
        },
        "collections": {
            "totalCount": 0,
            "__typename": "CollectionsConnection"
        },
        "selectedCollection": {
            "nodes": [
                {
                    "deletedAt": null,
                    "isHidden": false,
                    "__typename": "CollectionListing"
                }
            ],
            "__typename": "CollectionsConnection"
        },
        "listingAgents": {
            "nodes": [
                {
                    "agent": {
                        "email": "brandon@triplemint.com",
                        "firstName": "Brandon",
                        "id": 345818,
                        "lastName": "Marianne Lee",
                        "licensedStates": {
                            "nodes": [
                                {
                                    "license": "10401313213",
                                    "state": "NY_US"
                                },
                                {
                                    "license": "1538539",
                                    "state": "NJ_US"
                                }
                            ]
                        },
                        "phone": "917.521.9022",
                        "profileImageUrl": "https://images.triplemint.com/production/images/user/345818/x700/7acefc29-4bdd-4285-9cde-b5f708917a22.jpeg"
                    },
                    "team": null
                },
                {
                    "agent": null,
                    "team": {
                        "email": "wt@triplemint.com",
                        "id": 3,
                        "name": "The Whitman Team",
                        "phone": null,
                        "profileImageUrl": "https://images.triplemint.com/production/images/team/3/x400/whitman-team-profile-photo.jpg",
                        "slug": "the-whitman-team"
                    }
                }
            ]
        },
        "listingNotes": {
            "nodes": [
                {
                    "agentId": 658298,
                    "listingId": 1859017,
                    "notes": "A listing note",
                    "__typename": "ListingNote"
                }
            ],
            "__typename": "ListingNotesConnection"
        },
        "mlsSource": {
            "checkedAt": "2022-02-15T21:04:40.625401+00:00",
            "mlsRule": {
                "disclaimer": "",
                "logoUrl": "",
                "showAgentLicense": true,
                "showAgentName": true,
                "showAgentPhone": true,
                "showBrokerName": true,
                "showBrokerPhone": true,
                "showStreetNumberForClients": true,
                "showStreetNumberForGuests": true
            },
            "source": "tigris-se"
        },
        "openHouses": {
            "nodes": [
                {
                    "appointmentOnly": true,
                    "date": "2025-01-22",
                    "endTime": "15:00:00",
                    "startTime": "14:00:00"
                },
                {
                    "appointmentOnly": false,
                    "date": "2025-01-29",
                    "endTime": "14:00:00",
                    "startTime": "13:00:00"
                }
            ]
        },
        "unit": {
            "bathrooms": "4.0",
            "bedrooms": "0.0",
            "id": 2187845,
            "number": "5-A",
            "surfaceArea": 456,
            "__typename": "Unit",
            "exposures": [
                "South"
            ],
            "fullBathrooms": 2,
            "halfBathrooms": 2,
            "specialAptSize": null,
            "views": [
                "Skyline Views"
            ],
            "building": {
                "city": "New York City",
                "crossStreets": [
                    "Franklin Avenue",
                    "Bedford Avenue"
                ],
                "flipTax": null,
                "hdfcApproved": false,
                "id": 1563,
                "landLease": false,
                "name": "The Bergen House",
                "petPolicy": "pets allowed",
                "position": {
                    "latitude": 40.6764717102051,
                    "longitude": -73.9553756713867,
                    "__typename": "GeographyPoint"
                },
                "rentalsCount": 1,
                "salesCount": 1,
                "state": "NY",
                "stories": 6,
                "structureType": "Low-Rise",
                "units": 36,
                "urlSlug": "1563-954-Bergen-St-Crown-Heights-Brooklyn-NY-11216",
                "year": 2015,
                "zip": "11216",
                "amenities": {
                    "nodes": [
                        {
                            "amenity": {
                                "name": "elevator",
                                "__typename": "Amenity"
                            },
                            "__typename": "BuildingsAmenity"
                        },
                        {
                            "amenity": {
                                "name": "video intercom",
                                "__typename": "Amenity"
                            },
                            "__typename": "BuildingsAmenity"
                        },
                        {
                            "amenity": {
                                "name": "parking",
                                "__typename": "Amenity"
                            },
                            "__typename": "BuildingsAmenity"
                        }
                    ],
                    "__typename": "BuildingsAmenitiesConnection"
                },
                "images": {
                    "nodes": [],
                    "__typename": "DynBuildingsImagesConnection"
                },
                "region": {
                    "addressParts": [
                        "Crown Heights",
                        "Brooklyn"
                    ],
                    "encodedBounds": "uohwFhdmbM|dBoRvH`C]iGiDs}AjCciAAeKv@@mmAgsDsAp`@aNhvGqFba@yFzd@",
                    "id": 325,
                    "name": "Crown Heights",
                    "regionType": "neighbourhood",
                    "state": "NY",
                    "__typename": "Region",
                    "county": {
                        "name": "Brooklyn",
                        "regionType": "borough"
                    }
                },
                "__typename": "Building"
            },
            "unitClientNotes": {
                "nodes": [
                  {
                    "notes": "A unit client note",
                    "agentId": 658298,
                    "clientId": 658298,
                    "unitId": 1730212
                  }
                ]
            },
            "unitNotes": {
                "nodes": [
                  {
                    "notes": "A unit note",
                    "agentId": 658298,
                    "unitId": 1730212
                  }
                ]
            }
        },
        "userData": {
            "nodes": [
                {
                    "likeStatus": null,
                    "tourRequested": null,
                    "comments": {
                        "totalCount": 0
                    }
                }
            ]
        }
    }
}
Tests:
structuredClone
structuredClone(data);
JSON
JSON.parse(JSON.stringify(data));
Run results for: structured clone vs JSON

structuredClone

JSON
