Retrieves the value of a specified element from a JSON array. If the array element does not exist in the JSON array or the array element does not contain a JSON array value nothing happens.
Json.bdh
JsonArrayGetArrayElement( in handle : number, in index : number, out value : number ): boolean;
Parameter | Description |
---|---|
handle | Valid handle to a JSON array |
index | The index position in the JSON array. Lower bound is zero (0). |
value | Parameter that contains the value of the specified element. The value is a handle to a JSON array. |
transaction TMain var jsonText, elementValue : string; jsonArray, nestedArray, i, j : number; begin WebParseDataBound(jsonText); WebPageUrl("http://mycompany.com/api/jsondata"); jsonArray := JsonParse(jsonText); for i := 0 to (JsonGetArrayLength(jsonArray) - 1) do //get nested array JsonArrayGetArrayElement(jsonArray, i, nestedArray); Print("Array at index " + string(i)); //iterate over nested array for j := 0 to (JsonGetArrayLength(nestedArray) - 1) do JsonArrayGetStringElement(nestedArray, j, elementValue); Print("index: " + string(j) + ", value: " + elementValue); end; end; JsonFree(jsonArray); end TMain;