deep freeze json

Benchmark created on October 17, 2023

Setup

var getJson = () => ({
    "name": "react-dom",
    "version": "18.2.0",
    "description": "React package for working with the DOM.",
    "main": "index.js",
    "repository": {
        "type": "git",
        "url": "https://github.com/facebook/react.git",
        "directory": "packages/react-dom"
    },
    "keywords": [
        "react"
    ],
    "license": "MIT",
    "bugs": {
        "url": "https://github.com/facebook/react/issues"
    },
    "homepage": "https://reactjs.org/",
    "dependencies": {
        "loose-envify": "^1.1.0",
        "scheduler": "^0.23.0"
    },
    "peerDependencies": {
        "react": "^18.2.0"
    },
    "files": [
        "LICENSE",
        "README.md",
        "index.js",
        "client.js",
        "profiling.js",
        "server.js",
        "server.browser.js",
        "server.node.js",
        "test-utils.js",
        "cjs/",
        "umd/"
    ],
    "exports": {
        ".": "./index.js",
        "./client": "./client.js",
        "./server": {
            "deno": "./server.browser.js",
            "worker": "./server.browser.js",
            "browser": "./server.browser.js",
            "default": "./server.node.js"
        },
        "./server.browser": "./server.browser.js",
        "./server.node": "./server.node.js",
        "./profiling": "./profiling.js",
        "./test-utils": "./test-utils.js",
        "./package.json": "./package.json"
    },
    "browser": {
        "./server.js": "./server.browser.js"
    },
    "browserify": {
        "transform": [
            "loose-envify"
        ]
    }
})

function deepFreezeJson(json) {
  if (!json || typeof json !== 'object') {
    return json;
  }

  Object.freeze(json);

  for (const value of Object.values(json)) {
    deepFreezeJson(value);
  }

  return json;
}


function deeperFreezeJson(json) {
  Object.freeze(json);

  if (json && typeof json === 'object') {
    for (const value of Object.values(json)) {
      deepFreezeJson(value);
    }
  }

  return json;
}

function deeperFreezeJson2(json) {
  Object.freeze(json);

  if (json && typeof json === 'object') {
  	Object.values(json).forEach(deepFreezeJson);
  }

  return json;
}

Test runner

deepFreezeJson(getJson())

deeperFreezeJson(getJson())

deeperFreezeJson2(getJson())

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

• Revision 1: published on October 17, 2023