tree.js

[
  [
    [
      "Hello, World"
    ]
  ],
  [
    "bookmarks",
    [
      12,
      15,
      188,
      1234
    ]
  ],
  [
    "author",
    [
      "Peter Parker",
      {
        "email": "peter@example.org"
      },
      {
        "active": true
      }
    ]
  ],
  [
    "contents",
    [
      "section",
      [
        "First section",
        [
          [
            "paragraph",
            [
              "This is the first paragraph"
            ]
          ],
          [
            "paragraph",
            [
              "This is the second paragraph"
            ]
          ]
        ]
      ]
    ]
  ],
  "This text is the value of an anonymous node!",
  [
    "matrix",
    [
      1,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      1
    ]
  ]
]