ClearArray

This method deletes the content of an array.

Syntax

METHOD ClearArray : BOOL
VAR_INPUT
  v : SJsonValue;
  i : SJsonAIterator;
END_VAR

Return value

Inputs

Sample call:

The following JSON document is to be loaded into the DOM memory:

sMessage := '{"serialNumber":"123","batteryVoltage":"1547mV","clickType":"SINGLE", "array":["Hello",2,3]}';

The values of the JSON array "array" are to be deleted. First of all, the JSON document is searched iteratively for the "array" property, after which all elements of the array are deleted by calling the ClearArray() method.

jsonDoc               := fbJson.ParseDocument(sMessage);
jsonIterator          := fbJson.MemberBegin(jsonDoc);
jsonIteratorEnd       := fbJson.MemberEnd(jsonDoc);
WHILE jsonIterator <> jsonIteratorEnd DO
  sName := fbJson.GetMemberName(jsonIterator);
  jsonValue           := fbJson.GetMemberValue(jsonIterator);
  IF sName = 'array' THEN
    jsonArrayIterator := fbJson.ArrayBegin(jsonValue);
    fbJson.ClearArray(jsonValue, jsonArrayIterator);
  END_IF
  jsonIterator        := fbJson.NextMember(jsonIterator);
END_WHILE