Psst: Open the JavaScript Console and try to play around with these functions:

Stacks

• const arrStack = []
• arrStack.push("Hello")
• arrStack.pop()
• const listStack = new Stack()
• listStack.push("Hello")
• listStack.pop()
• listStack.peek()

Queues

• const arrQueue = []
• arrQueue.push("Hello")
• arrQueue.shift()
• const listQueue = new Queue()
• listQueue.enqueue("Hello")
• listQueue.dequeue()
• listQueue.peek()