List

A List is a container of variables of the same type, where the data types boolean, number, float, and string are supported. In contrary to an array, the number of elements in a list is dynamic. Silk Performer provides a number of functions to work with lists. A list without initialization has the size 0. Adding elements increases the list size, removing elements decreases the size.

Note: Lists of lists are not supported.

Example

transaction TAList
var
  lstNumber:  list of number;
  lstBoolean: list of boolean;
  lstFloat:  list of float;
  lstString: list of string init "one", "two", "three";
  nrVal: number;
begin
  ListAdd(lstNumber, 1); // first element
  ListAdd(lstNumber, 2); // second element
  ListAdd(lstNumber, 3); // ...
  ListAdd(lstNumber, 5); // lstNumber == { 1, 2, 3, 5 }
  ListInsert(lstNumber, 4, 4); // lstNumber == { 1, 2, 3, 4, 5 }
  ListGetFirst(lstNumber, nrVal); // nrVal == 1
  Print("nrVal: " + string(nrVal));
  ListPrint(lstNumber);

  ListSetAt(lstNumber, 3, 33);
  ListRemoveFirst(lstNumber);
  ListremoveLast(lstNumber);
  Print("**************");
  ListPrint(lstNumber);
  
  Print("length of the string-list: " + string(ListGetLength(lstString)));
end TAList;

Output

nrVal: 1
element 1: 1
element 2: 2
element 3: 3
element 4: 4
element 5: 5
**************
element 1: 2
element 2: 33
element 3: 4
length of the string-list: 3