ListContains Function

Action

Checks if a specific value is in a list or not.

Include file

List.bdh

Syntax

ListContains(
   in theList: list,
   in element: union) : boolean;

Parameter	Description
theList	List of number, boolean, float or string.
element	Element to be searched in theList.

Return value

true if the element is found
false otherwise

Example

transaction TAListContains
var
  lstNumber: list of number init 1, 2, 3;
  retVal1: boolean;
  nrVal: number init 2;
begin
  retVal1 := ListContains(lstNumber, nrVal);
  writeLn("2 is element of the list: " + string(retVal1));
  retVal1 := ListContains(lstNumber, 4);
  writeLn("4 is element of the list: " + string(retVal1));
end TAListContains;

Output

2 is element of the list: TRUE
4 is element of the list: FALSE