json.intersection

json.intersection() Function

• Introduced in version 1.3b53

Returns a JSON Array with the intersection of all of the JSON Object keys or JSON Array values. A value or key only appears in the output if it exists in all input arrays or objects. This function is useful for removing Token IDs from a saved list which have been deleted from the map by eliminating them using this function, the saved array and getTokens().

Usage

json.intersection(array, array, ...)

json.intersection(object, object, ...)

Parameters

• array - A JSON Array used in the intersection.
• object - A JSON Object used in the intersection.

Examples

  [h: array1 = json.append("",1,2,3,4)]
  [h: array2 = json.append("",3,4,5,6)]
  [r: json.intersection(array1,array2)]

Returns:

"[3,4]"

  [h: arrayOfSelectedNames = getSelectedNames("json")]
  [h: arrayOfNamesOnMap = getTokenNames("json")]
  [r: json.intersection(arrayOfSelectedNames,arrayOfNamesOnMap)]

Input:

arrayOfSelectedNames = ["Alexander","Josh"]
arrayOfNamesOnMap = ["Kevin","Josh","Alexander"]

Returns:

["Alexander","Josh"]

See Also

json.difference()