[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'fpjson' (#fcl)

# TJSONtype

Possible types of JSON data

## Declaration

Source position: fpjson.pp line 33

`type TJSONtype = (`
`jtUnknown,` |  | Unknown JSON data type
`jtNumber,` |  | Numerical type. This can be integer (32/64 bit) or float.
`jtString,` |  | String data type.
`jtBoolean,` |  | Boolean data
`jtNull,` |  | Null data
`jtArray,` |  | Array data (integer index,elements can be any type)
`jtObject` |  | Object data (named index, elements can be any type)
`);`

## Description

TJSONtype determines the type of JSON data a particular object contains. The class function TJSONData.JSONType returns this type, and indicates what kind of data that particular descendent contains. The values correspond to the original data types in the JSON specification. The TJSONData object itself returns the unknown value.

## See also

TJSONData.JSONType |  | The native JSON data type represented by this object
TJSONData |  | Base (abstract) object for all JSON based data types