System.JSON.TJSONValue.FindValue
Delphi
function FindValue(const APath: string): TJSONValue; virtual;
C++
virtual TJSONValue* __fastcall FindValue(const System::UnicodeString APath);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | protected | System.JSON.pas System.JSON.hpp |
System.JSON | TJSONValue |
Description
Finds and returns a TJSONValue instance located at the specified APath JSON path. Otherwise, returns nil.
As implemented in the current TJSONValue version:
- If
APath = '', FindValue returns this TJSONValue instance. - Otherwise, FindValue returns
nil.
Supported JSON Path Syntax
FindValue uses TJSONPathParser to parse the specified JSON path.
TJSONPathParser implements a subset of the JSON path specification defined by Stefan Göessner. Specifically, supported elements are child operators (.) for objects and subscript operators ([]) for arrays. These operators do not support special expressions, they only support actual values.
This is an example of a JSON path that TJSONPathParser supports: "store.books[0].title".