Recursive descent

Setup

Selector: $..

[{"a": {"b": "c"}}, [0, 1]]

Results

Consensus

Not supported

Other responses

Bash (JSONPath.sh)

[
  "c",
  0,
  1
]

Clojure (json-path) ¹

[
  0,
  1,
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Cpp (jsoncons)

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Elixir (jaxon)

[
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ]
]

Erlang (ejsonpath)

[
  "c",
  0,
  1,
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Golang (github.com-ohler55-ojg)

[
  "c",
  0,
  1,
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Golang (github.com-spyzhov-ajson)

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

JavaScript (Goessner) ²

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

JavaScript (jsonpath-plus)

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Kotlin (com.nfeld.jsonpathkt) ¹

[
  [
    0,
    1
  ],
  {
    "a": {
      "b": "c"
    }
  }
]

PHP (Goessner) ²

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

PHP (softcreatr-jsonpath)

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Perl (JSON-Path)

[]

Python (jsonpath) ²

[
  "c",
  0,
  1,
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Python (python-jsonpath)

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Raku (JSON-Path)

[
  "c",
  0,
  1,
  [
    0,
    1
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Ruby (jsonpath)

[
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ]
]

Rust (jsonpath_plus)

[
  "c",
  0,
  1,
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

dotNET (JsonCons.JsonPath)

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

dotNET (JsonPathLib)

[
  [
    0,
    1
  ],
  [
    {
      "a": {
        "b": "c"
      }
    },
    [
      0,
      1
    ]
  ],
  {
    "a": {
      "b": "c"
    }
  },
  {
    "b": "c"
  }
]

Errors

Golang (github.com-bhmj-jsonslice) ¹ ³

path: unexpected end of path at 3

Golang (github.com-oliveagle-jsonpath) ¹

expression don't support in filter

Java (com.github.jsurfer)

java.lang.IllegalStateException: deep-scan shouldn't be the last operator.

Footnotes

• ¹ This implementation returns a single value where only one match is possible (instead of an array of a single value).
• ² This implementation returns a specific not found value if no match exists.
• ³ This implementation returns a specific not found value if a query that would regularly return a single match results in no match.