Arrays are one of the most commonly used data structures in JavaScript. They help store and manage…

In modern JavaScript, two powerful built-in data structures are Set and Map . They are often…

🔹 Spread Operator ( ... ) Use it to expand values — most often used in arrays, objects, or…

You are tasked with implementing a document versioning system. Each document has multiple versions…

2-pointers use 2 pointers (variables) to keep track of the index of array or string. there are…

DFS - Depth First Search an algorithm to search/ traversing the graph data structure recursive…

Dijkstra Problem: given a weighted graph of non-negative weight, and a source node s, find shortest…

🚀 Core Next.js Concepts What are the differences between getStaticProps , getServerSideProps…

User flow If you want users to get from A to B, you have to design how they get there. And you…

Responsive design In its simplest definition, responsive design uses just one layout for a web page…