Peek()
OutputVar := instance.Peek()
Returns the object at the top of the MfStack without removing it.
Returns The object at the top of the MfStack.
Throws MfInvalidOperationException if the MfStack is empty.
If current Peek value is a null or empty then Null is returned.
NL := MfEnvironment.Instance.NewLine ; put new Line into var for easy access
MyStack := new MfStack()
; Add objects to the Queue
loop, 10
{
MyStack.Enqueue(new MfString(MfString.Format("This is item number '{0}' in the Stack."
, A_Index)))
}
try
{
peekVar := MyStack.Peek() ; get the last item without removeing it
if (MfNull.IsNull(peekVar)) {
MsgBox, 48, Null, The First value in the Stack is Empty
} else if (MfObject.IsObjInstance(peekVar)) {
MsgBox, 64, Info, % "The value of the first item in the Queue is" . NL . peekVar.ToString()
}
} catch e {
; if MyStack is empty a MfInvalidOperationException error will be thrown
MsgBox, 16, Error, % "An Error has Occured" . NL e.Message
}
ExitApp