IQueue.Dequeue

Syntax

Dequeue: Variant;

Description

The Dequeue method extracts a value of the element that is placed as the first one from a queue. After extracting, the element is removed from a queue.

Example

Sub Main;

Var

Que: IQueue;

i: Integer;

Begin

Que:=New Queue.Create;

For i:=0 To Math.RandBetweenI(50,100) Do

Que.Enqueue("Value "+Math.RandBetweenI(0,100).ToString);

End For;

For i:=0 To Math.RandBetweenI(0,50) Do

Que.Dequeue;

End For;

i:=Que.Count;

End Sub Main;

After executing the example a queue of random elements is created, part of elements is extracted, and the "i" variable contains the number of elements that are left in a queue.