For the given string, determine if the open and closed brackets/parentheses are balanced are not, i.e. for every open bracket there must be a closed bracket in the same order. Return true if balanced and false if unbalanced. 🟢 Easy 🧩 Pattern – Stack Example Solution approach This can be… Read More »Check if parentheses are balanced – JS
A Linked List 🔗 is a linear data structure that stores data in a list of nodes, each node has a pointer to the next node and so on until the tail points to null. Singly Linked List: In a singly linked list, each node has a pointer only to… Read More »Doubly Linked List in JavaScript
Linked List 🔗 is a linear data structure that stores data as a list of nodes, where each node has a pointer to the next node and so on until the tail points to null. It has a head, tail, and length properties. We have arrays, but insertion/deletion or modification… Read More »Singly Linked List in JavaScript
A Queue is a data structure that follows the FIFO (First In, First Out) principle. Think of it like a real-world queue 🧑🤝🧑 where people join from the last and exit from the start. Operations performed on a Queue JavaScript Code for a Queue I have implemented the JavaScript code… Read More »Implementing Queue in JavaScript
A stack is a data structure that follows the LIFO (Last In, First Out) principle. Think of it like a stack of books 📚: you can only add a new book to the top or remove one from the top. Operations performed on a Stack JavaScript Code for a Stack… Read More »Implementing Stack in JavaScript
Tree Traversal: visiting every node of a tree. Unlike other linear data structures, where we traverse through every element in order, it’s not the same with the tree. Trees being non-linear data structures, there will always be more than one way to traverse through a tree. There are three types… Read More »Tree Traversals – Preorder, Inorder, Postorder