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Types ¶
type Queue ¶
type Queue[T any] struct { // contains filtered or unexported fields }
Queue represents a generic FIFO queue data structure. Elements are added to the back and removed from the front. The zero value is not usable; use NewQueue to create a new Queue.
func NewQueue ¶
NewQueue creates and returns an empty queue that can store elements of type T.
Example:
q := NewQueue[int]() q.Enqueue(1)
func (*Queue[T]) Dequeue ¶
Dequeue removes and returns the element at the front of the queue. Returns the element and true if successful, or zero value and false if the queue is empty.
Example:
q := NewQueue[int]() q.Enqueue(1) q.Enqueue(2) val, ok := q.Dequeue() // val = 1, ok = true val, ok = q.Dequeue() // val = 2, ok = true val, ok = q.Dequeue() // val = 0, ok = false (queue empty)
func (*Queue[T]) Enqueue ¶
func (q *Queue[T]) Enqueue(element T)
Enqueue adds an element to the back of the queue.
Example:
q := NewQueue[int]() q.Enqueue(1) // queue now contains: [1] q.Enqueue(2) // queue now contains: [1, 2]
func (*Queue[T]) IsEmpty ¶
IsEmpty returns true if the queue contains no elements, false otherwise.
Example:
q := NewQueue[int]() fmt.Println(q.IsEmpty()) // Output: true q.Enqueue(1) fmt.Println(q.IsEmpty()) // Output: false
func (*Queue[T]) Length ¶
Length returns the number of elements currently in the queue.
Example:
q := NewQueue[int]() q.Enqueue(1) q.Enqueue(2) fmt.Println(q.Length()) // Output: 2
func (*Queue[T]) Peek ¶
Peek returns the element at the front of the queue without removing it. Returns the element and true if successful, or zero value and false if the queue is empty.
Example:
q := NewQueue[int]() q.Enqueue(1) val, ok := q.Peek() // val = 1, ok = true, queue still contains: [1]
func (*Queue[T]) PreventDuplicates ¶ added in v0.2.1
PreventDuplicates will prevent duplicates being added to the queue, giving it Set qualities. Returns an error if the generic T is not Comparable
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