![]() ![]() The push() method returns the value of the length property that specifies the number of elements in the array. The push() method allows you to add one or more elements to the end of the array. JavaScript Array type provides the push() and pop() methods that allow you to use an array as a stack. The other applications of the stack are “undo” mechanism in text editors, syntax parsing, function call, and expression conversion (infix to postfix, infix to prefix, postfix to infix, and prefix to infix). To do it, you push a word into the stack, letter by letter, and pop the letters from the stack. ![]() ![]() For example, the simplest one is to reverse a word. The name stack comes from the analogy to a set of physical items e.g., DVD disc, books, stacked on top each other.Ī stack has many applications. The push operation places an element at the top of stack whereas the pop operation removes an element from the top of the stack. A stack works based on the LIFO principle i.e., Last In, First out, meaning that the most recently added element is the first one to remove.Ī stack has two main operations that occur only at the top of the stack: push and pop. Introduction to the stack data structureĪ stack is a data structure that holds a list of elements. Summary: this tutorial introduces you to the JavaScript stack data structure and shows you how to use an array as a stack. ![]()
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March 2023
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