![]() A Stack is a first-in, last-out data structure that pops elements in the opposite order than they were pushed. Is it good enough and elegant ? What I should change ? I'll post only mentioned methods, rest should be simple enough. JGL includes three containers with this property. This data structure is a bit of a hybrid between a Stack and a Queue, permitting you to add/remove elements to/from either end. I would recommend you to review the double-ended queue, or Deque, which has been part of the Java Collections API since Java 1.6. Particularly I'm not asking for better implementation. Based on your described use case, I think you need a different data structure. Use the call() or apply() to call the pop() method on an array-like object.I had an exercise to create two methods for simple queue class, first to delete last element and second to delete element at k position.Use the pop() method to remove the last element of an array.It does not deletes the element in the container. Besides basic Collection operations, queues provide additional insertion, extraction. Third, output the removed element ( greeting) and the greetings object to the console: console.log(greting) Ĭonsole.log(greetings) Code language: JavaScript ( javascript ) Summary The element () method of Queue Interface returns the element at the front the container. A collection designed for holding elements prior to processing. Pop and return the top element from outbox. ![]() If outbox is empty, refill it by popping each element from inbox and pushing it onto outbox. Second, call the removeLast() method of the greetings object: let greting = greetings.removeLast() Code language: JavaScript ( javascript ) Keep 2 stacks, lets call them inbox and outbox.
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