Filter expression with non singular existence test
Setup
Selector: $[?(@.a.*)]
[
{"a": 0},
{"a": "x"},
{"a": false},
{"a": true},
{"a": null},
{"a": []},
{"a": [1]},
{"a": [1, 2]},
{"a": {}},
{"a": {"x": "y"}},
{"a": {"x": "y", "w": "z"}}
]
Results
Other responses
Bash (JSONPath.sh)
[]
C (json-glib)
Not supported
Unable to compile selector `$[?(@.a.*)]': Invalid array index definition “?(@.a.*)]”
Clojure (json-path)
¹
[]
Cpp (jsoncons)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Dart (json_path)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Elixir (ExJsonPath)
Not supported
syntax error before: ')'
Elixir (jaxon)
[]
Elixir (warpath)
¹
Not supported
Parser error: Invalid token on line 1, syntax error before: <<"*">>
Erlang (ejsonpath)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
[]
[]
[]
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Haskell (jsonpath)
Not supported
Invalid JSONPath: $[?(@.a.*)]
Error: 1:9:
|
1 | $[?(@.a.*)]
| ^
unexpected '*'
expecting "!=", "&&", "<=", "==", ">=", "||", '!', ')', '<', '>', or white space
JavaScript (brunerd)
Not supported
JavaScript (jsonpathly)
[
{
"a": 0
},
{
"a": "x"
},
{
"a": false
},
{
"a": true
},
{
"a": null
},
{
"a": []
},
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {}
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Java (com.github.jsurfer)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Java (com.jayway.jsonpath)
¹
³
[
{
"a": 0
},
{
"a": "x"
},
{
"a": false
},
{
"a": true
},
{
"a": null
},
{
"a": []
},
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {}
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Kotlin (com.nfeld.jsonpathkt)
¹
Not supported
Unexpected char, char=?, index=2
Objective-C (SMJJSONPath)
¹
³
[
{
"a": 0
},
{
"a": "x"
},
{
"a": false
},
{
"a": true
},
{
"a": null
},
{
"a": []
},
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {}
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
PHP (galbar-jsonpath)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
PHP (remorhaz-jsonpath)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
PHP (softcreatr-jsonpath)
[]
Python (jsonpath)
²
Not found
jsonpath returned false, this might indicate an error
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)
[]
Python (python-jsonpath)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Raku (JSON-Path)
Not supported
Evaluation of embedded Perl 6 code not allowed (construct with :allow-eval)
Ruby (jsonpath)
[
{
"a": 0
},
{
"a": "x"
},
{
"a": true
},
{
"a": []
},
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {}
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Rust (jsonpath)
Not supported
parsing error
Rust (jsonpath_lib)
[
{
"a": 0
},
{
"a": "x"
},
{
"a": false
},
{
"a": true
},
{
"a": null
},
{
"a": []
},
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {}
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Rust (jsonpath_plus)
[]
Rust (serde_json_path)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Scala (jsonpath)
[
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
Swift (Sextant)
[
{
"a": 0
},
{
"a": "x"
},
{
"a": false
},
{
"a": true
},
{
"a": null
},
{
"a": []
},
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {}
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
dotNET (Json.NET)
[
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
dotNET (JsonCons.JsonPath)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
dotNET (JsonPath.Net)
[
{
"a": [
1
]
},
{
"a": [
1,
2
]
},
{
"a": {
"x": "y"
}
},
{
"a": {
"w": "z",
"x": "y"
}
}
]
dotNET (Manatee.Json)
Not supported
The method or operation is not implemented.
Errors
path: unexpected end of path at 4
JavaScript (Goessner)
²
jsonPath: Unexpected token *: _v.a.*
JavaScript (jsonpath)
Line 1: Unexpected token *
JavaScript (jsonpath-plus)
Unexpected token '*'
PHP (Goessner)
²
ArgumentCountError
Perl (JSON-Path)
non-safe evaluation, died at main.pl line 11.
dotNET (JsonPathLib)
Line 1: Unexpected token *
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.