JS Practice — Built-in Objects

Generics — Generic Queue Class

📖 Usage Example

const q = new Queue<string>()
q.enqueue('a')
q.enqueue('b')
q.dequeue()   // → 'a'

A generic Queue<T> class enforces a single element type with FIFO semantics.

Generic Classes: Queue<T>

Challenge: Implement a generic Queue<T> class with enqueue, dequeue, peek, and size.

const q = new Queue<number>()
q.enqueue(1); q.enqueue(2)
q.dequeue()  // → 1 (FIFO)
q.size       // → 1

💡 Hints (1)