a fifo reader in javascript

index.tsx
class Queue {
  constructor() {
    this.items = [];
  }
  
  enqueue(item) {
    this.items.push(item);
  }
  
  dequeue() {
    if (this.isEmpty()) {
      return "Underflow";
    }
    return this.items.shift();
  }
  
  front() {
    if (this.isEmpty()) {
      return "No items in Queue";
    }
    return this.items[0];
  }
  
  isEmpty() {
    return this.items.length === 0;
  }
  
  clear() {
    this.items = [];
  }
}

const myQueue = new Queue();

// Add items to the queue
myQueue.enqueue("A");
myQueue.enqueue("B");
myQueue.enqueue("C");
myQueue.enqueue("D");

// Read items from the queue
console.log(myQueue.dequeue()); // Output: A
console.log(myQueue.dequeue()); // Output: B

// Add more items
myQueue.enqueue("E");

console.log(myQueue.dequeue()); // Output: C
console.log(myQueue.front()); // Output: D
console.log(myQueue.dequeue()); // Output: D

// Clear the queue
myQueue.clear();

console.log(myQueue.isEmpty()); // Output: true
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