{
  "items": [
    {
      "revision_guid": "8FD5F52A-B16F-4C66-AB48-830EABB36CC0",
      "post_id": 48254637,
      "revision_number": 5,
      "creation_date": 1537324801,
      "user": {
        "user_id": 1223975
      },
      "content_license": "CC BY-SA 4.0",
      "body": "<p>@RobW's answer is correct, but this is more performant ! Because it uses a hashmap/set:</p>\n<pre><code>const customStringify = function (v) {\n  const cache = new Set();\n  return JSON.stringify(v, function (key, value) {\n    if (typeof value === 'object' &amp;&amp; value !== null) {\n      if (cache.has(value)) {\n        // Circular reference found, discard key\n        return;\n      }\n      // Store value in our set\n      cache.add(value);\n    }\n    return value;\n  });\n};\n</code></pre>\n"
    }
  ]
}