Dot notation after filter expression
Setup
Selector: $[?(@.id==42)].name
[{"id": 42, "name": "forty-two"}, {"id": 1, "name": "one"}]
Results
Consensus
[
"forty-two"
]
Other responses
C (json-glib)
Not supported
Unable to compile selector `$[?(@.id==42)].name': Invalid array index definition “?(@.id==42)].name”
Clojure (json-path)
¹
[]
Elixir (jaxon)
[]
[]
Kotlin (com.nfeld.jsonpathkt)
¹
Not supported
Unexpected char, char=?, index=2
Python (jsonpath-ng)
Not supported
JsonPathLexerError('Error on line 1, col 2: Unexpected character: ? ')
Python (jsonpath-rw)
Not supported
JsonPathLexerError('Error on line 1, col 2: Unexpected character: ? ')
Python (jsonpath2)
Not supported
line 1:9 extraneous input '=' expecting {'@', '$', 'true', 'false', 'null', '{', '[', STRING, NUMBER}
ValueError("line 1:9 extraneous input '=' expecting {'@', '$', 'true', 'false', 'null', '{', '[', STRING, NUMBER}")
Raku (JSON-Path)
Not supported
Evaluation of embedded Perl 6 code not allowed (construct with :allow-eval)
Rust (jsonpath)
[]
Errors
PHP (Goessner)
²
ArgumentCountError
Perl (JSON-Path)
non-safe evaluation, died at main.pl line 11.
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.