Code Inspections in JSON and JSON5

This topic lists all PhpStorm code inspections available in JSON and JSON5.

You can toggle specific inspections or change their severity level on the Editor | Inspections page of the IDE settings Ctrl+Alt+S.

Inspection	Description	Default Severity
Compliance with JSON schema	Reports inconsistence between a JSON file and the JSON schema that is assigned to it.	Warning
Compliance with JSON standard	Reports the following discrepancies of a JSON file with the language specification: A line or block comment (configurable). Multiple top-level values (expect for JSON Lines files, configurable for others). A trailing comma in an object or array (configurable). A single quoted string. A property key is a not a double quoted strings. A NaN or Infinity/-Infinity numeric value as a floating point literal (configurable).	Error
Compliance with JSON5 standard	Reports inconsistency with the language specification in a JSON5 file.	Error
Deprecated JSON property	Reports a deprecated property in a JSON file. Note that deprecation mechanism is not defined in the JSON Schema specification yet, and this inspection uses a non-standard extension 'deprecationMessage'.	Weak warning
Duplicate keys in object literals	Reports a duplicate key in an object literal.	Warning
Unknown JSONPath function	Reports an unknown name in a JSONPath function call instead of known standard function names: `concat`, `keys`, `length`, `min`, `max`, `avg`, `stddev`, `sum`.	Warning
Unknown JSONPath operator	Reports an unknown operator on a JSONPath expression instead of one of the standard ones: `in`, `nin`, `subsetof`, `anyof`, `noneof`, `size`, `empty`, `contains`.	Warning
Unknown property key used for JSONPath evaluate expression	Reports a key in a JSONPath expression that is missing in the source JSON document to evaluate.	Warning
Unresolved '$ref' and '$schema' references	Reports an unresolved `$ref` or `$schema` path in a JSON schema.	Warning

Last modified: 11 February 2022