Run results for: StructuredClone vs JSON parse

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0

Browser: Firefox 124

Operating system: Windows

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
JSON	119262.3 Ops/sec
struc	93155.6 Ops/sec

Script Preparation code:

window.testObject = {
  "clientId": "d4c91d9e-968f-4aac-861a-96d6f00ef182",
  "name": "foundry/query-post-template",
  "isValid": true,
  "originalContent": "",
  "validationIssues": [],
  "attributes": {
    "useFeaturedImageAsBackground": 0,
    "useOverlay": 0,
    "overlayOpacity": 5,
    "postWidth": {
      "all": 4,
      "md": 6,
      "sm": 12
    },
    "gutter": 1,
    "justify": {
      "all": "center"
    },
    "align": {
      "all": "stretch",
      "sm": "start"
    },
    "postPadding": {
      "all": {
        "t": 5,
        "l": 3,
        "r": 3,
        "b": 3
      }
    },
    "background": {
      "color": "",
      "images": false
    },
    "innerJustify": {
      "all": "center"
    },
    "innerAlign": {
      "all": "stretch",
      "sm": "start"
    },
    "boxShadow": "fcp64f75f34cf18b",
    "fndryBlockId": "fndry-block-6616b81d8d606"
  },
  "innerBlocks": [
    {
      "clientId": "e9a0cbde-fc5b-43d6-bb12-7822e4b8daa1",
      "name": "foundry/post-title",
      "isValid": true,
      "originalContent": "",
      "validationIssues": [],
      "attributes": {
        "level": 3,
        "isLink": false,
        "rel": "",
        "linkTarget": "_self",
        "fndryBlockId": "fndry-block-6616b81e8d60d"
      },
      "innerBlocks": []
    },
    {
      "clientId": "82782445-d9d0-4a7d-b724-272ca9b76eb7",
      "name": "foundry/post-date",
      "isValid": true,
      "originalContent": "",
      "validationIssues": [],
      "attributes": {
        "fndryBlockId": "fndry-block-6616b81e8d60e"
      },
      "innerBlocks": []
    },
    {
      "clientId": "1a4197f7-47c0-4f10-bb90-7890baa03f5c",
      "name": "foundry/button",
      "isValid": true,
      "originalContent": "",
      "validationIssues": [],
      "attributes": {
        "newTab": false,
        "noreferrer": false,
        "noopener": false,
        "margin": {
          "all": {
            "t": "auto"
          }
        },
        "minWidth": 200,
        "minHeight": 60,
        "fndryBlockId": "fndry-block-6616b81e8d60f"
      },
      "innerBlocks": []
    }
  ]
}

Tests:

JSON
JSON.parse(JSON.stringify(testObject));
struc
structuredClone(testObject)

Run results for: StructuredClone vs JSON parse

JSON

struc