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Understand Stacks

Explore how to create and use the stack data structure in JavaScript by building a stack class with essential methods like push, pop, and top. Understand how stacks operate on a last-in-first-out basis and apply this to implement undo functionality in a text editor project. Gain practical insights into managing data with stacks for interactive web applications.

Introduction to stacks

To build the undo functionality for our text editor, we will be using the stack data structure. A stack is a data structure that follows a last-in-first-out policy. It means that the insertion and deletion of the elements from the stack happen from the top (end) of the array. For example, consider a pile of books—if we want to remove one book from the pile of books, we can do so by removing the book first on the top and then the next one, and so on. If we want to ...