class Queue {

constructor(capacity) {

this.capacity = capacity;

this.length = 0;

this.list = [];

}

enqueue(item) {

if (this.length < this.capacity) {

this.list.push(item);

this.length++;

}

}

dequeue() {

if (this.length != 0) this.list.shift();

this.length--;

}

isEmpty(){

return this.length==0 ? true : false

}

isFull(){

return this.length==this.capacity

}

size(){

return this.length

}

print(){

// this.list.forEach((item)=>{

// console.log(item)

// })

console.log(this.list)

}

}

const queue = new Queue(5);

queue.enqueue(10)

queue.enqueue(20)

queue.enqueue(30)

queue.enqueue(40)

queue.print()

console.log("Size: "+queue.size())

console.log("Full: "+queue.isFull())

console.log("IsEmpty: "+queue.isEmpty())

queue.print()

queue.dequeue()

queue.dequeue()

queue.print()