Dinfio Documentation — Function Reference: queue::top()

Module adt → Class queue → top()

Description

Retrieve but not remove the head of the Queue, or return nothing if the Queue is empty

queue::top()

Parameters

There are no parameters.

Return Value

any — Returns the head of the Queue, or return nothing if the Queue is empty

Usage Example

import adt/queue
 
queue = queue()
 
queue.push(10)
queue.push(12)
queue.push(8)
 
writeln(queue.top())   ' Output: 10
writeln(queue.top())   ' Output: 10