JDCodebase

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Welcome to JDCodebase, your practical learning hub for Web Development and Data Structures & Algorithms (DSA). This channel is designed for complete beginners, students, and aspiring developers who want to learn coding from scratch through hands-on, step-by-step explanations. What You’ll Find Here Full Web Development roadmap: HTML, CSS, JavaScript, React, Tailwind, Node.js, Express Practical, project-based tutorials (no boring theory) DSA in JavaScript from basic to advanced One-shot DSA videos for quick revision LeetCode solutions explained using simple visuals & PPTs Why JDCodebase? Because you learn faster by doing. Every video is created with PPT + practical coding, making complex concepts easy to understand—even if you have zero experience in tech. If you're building skills for your first job, improving your development knowledge, or preparing for coding interviews, JDCodebase is here to guide you every step of the way. 🚀 Subscribe and start your developer journey today!

Home Videos Live Playlists

TypeScript Day 1 🔥 Setup + Basic Types (Beginner Friendly) | JDCodebase

TypeScript Day 1 🔥 Setup + Basic Types (Beginner Friendly) | JDCodebase JDCodebase

1 views - 11 hours ago

LeetCode 605 – Can Place Flowers | Day 4 LeetCode 75 | Greedy Explained Simply

LeetCode 605 – Can Place Flowers | Day 4 LeetCode 75 | Greedy Explained Simply JDCodebase

7 views - 4 days ago

LeetCode 1431 Explained | Kids With Candies | Step-by-Step Guide

LeetCode 1431 Explained | Kids With Candies | Step-by-Step Guide JDCodebase

6 views - 5 days ago

LeetCode 1071 | GCD of Strings Explained 🔥 | Smart Pattern You Must Know

LeetCode 1071 | GCD of Strings Explained 🔥 | Smart Pattern You Must Know JDCodebase

9 views - 6 days ago

Merge Strings Alternately | 2 Approaches + Hidden Optimization Trick 🚀

Merge Strings Alternately | 2 Approaches + Hidden Optimization Trick 🚀 JDCodebase

8 views - 1 week ago

Missing Number (LeetCode) | 3 Approaches + XOR Trick Explained 🔥

Missing Number (LeetCode) | 3 Approaches + XOR Trick Explained 🔥 JDCodebase

31 views - 2 weeks ago

LeetCode 414: Third Maximum Number | Optimal O(n) Approach Explained 🔥

LeetCode 414: Third Maximum Number | Optimal O(n) Approach Explained 🔥 JDCodebase

19 views - 2 weeks ago

349. Intersection of Two Arrays | JavaScript | Optimal Set Approach 🔥 LeetCode Easy

349. Intersection of Two Arrays | JavaScript | Optimal Set Approach 🔥 LeetCode Easy JDCodebase

22 views - 2 weeks ago

Rotate Array | LeetCode 189 | Optimal Reverse Approach 🔥 | In-Place O(1) Solution (JavaScript)

Rotate Array | LeetCode 189 | Optimal Reverse Approach 🔥 | In-Place O(1) Solution (JavaScript) JDCodebase

35 views - 2 weeks ago

LeetCode 169: Majority Element | 2 Best Approaches (JavaScript) 🔥

LeetCode 169: Majority Element | 2 Best Approaches (JavaScript) 🔥 JDCodebase

27 views - 3 weeks ago

Remove Duplicates from Sorted Array | Optimal Two Pointer Approach 🔥 | LeetCode Explained (JS)

Remove Duplicates from Sorted Array | Optimal Two Pointer Approach 🔥 | LeetCode Explained (JS) JDCodebase

38 views - 3 weeks ago

Merge Sorted Array (LeetCode 88) | 3 Approaches Explained 🔥 | Brute → Optimal (In-Place)

Merge Sorted Array (LeetCode 88) | 3 Approaches Explained 🔥 | Brute → Optimal (In-Place) JDCodebase

9 views - 3 weeks ago

JWT Authentication in Node.js 🔐 | Login System with Token (Step by Step for Beginners)

JWT Authentication in Node.js 🔐 | Login System with Token (Step by Step for Beginners) JDCodebase

46 views - 3 weeks ago

Move Zeroes | LeetCode 283 | Best Two Pointer Approach (JavaScript)

Move Zeroes | LeetCode 283 | Best Two Pointer Approach (JavaScript) JDCodebase

4 views - 3 weeks ago

Password Hashing in Node.js 🔐 | bcrypt Explained for Beginners | Register API

Password Hashing in Node.js 🔐 | bcrypt Explained for Beginners | Register API JDCodebase

18 views - 3 weeks ago

LeetCode #238 | Product of Array Except Self (3 Approaches Explained) 🚀

LeetCode #238 | Product of Array Except Self (3 Approaches Explained) 🚀 JDCodebase

17 views - 3 weeks ago

Validation & Error Handling in Express JS (Beginner Friendly) 🔥

Validation & Error Handling in Express JS (Beginner Friendly) 🔥 JDCodebase

15 views - 3 weeks ago

Contains Duplicate in JavaScript | LeetCode Easy Explained (1 Pass Solution)

Contains Duplicate in JavaScript | LeetCode Easy Explained (1 Pass Solution) JDCodebase

10 views - 3 weeks ago

MVC Architecture in Node.js & Express | Model Controller Routes Explained for Beginners

MVC Architecture in Node.js & Express | Model Controller Routes Explained for Beginners JDCodebase

24 views - 3 weeks ago

Two Sum Explained in JavaScript | LeetCode #1 | DSA Series

Two Sum Explained in JavaScript | LeetCode #1 | DSA Series JDCodebase

15 views - 3 weeks ago

CRUD Operations in MongoDB with Mongoose | Build Notes API | Node.js + Express Tutorial

CRUD Operations in MongoDB with Mongoose | Build Notes API | Node.js + Express Tutorial JDCodebase

53 views - 3 weeks ago

Mongoose Schemas & Models Explained | Node.js + MongoDB Tutorial for Beginners

Mongoose Schemas & Models Explained | Node.js + MongoDB Tutorial for Beginners JDCodebase

34 views - 4 weeks ago

Connect Node.js with MongoDB using Mongoose | Express + MongoDB Setup for Beginners

Connect Node.js with MongoDB using Mongoose | Express + MongoDB Setup for Beginners JDCodebase

26 views - 4 weeks ago

MongoDB Tutorial for Beginners | Collections, Documents & BSON Explained | MongoDB Compass

MongoDB Tutorial for Beginners | Collections, Documents & BSON Explained | MongoDB Compass JDCodebase

11 views - 4 weeks ago

Database Fundamentals for Beginners | SQL vs NoSQL | Document Databases Explained

Database Fundamentals for Beginners | SQL vs NoSQL | Document Databases Explained JDCodebase

30 views - 1 month ago

REST API Design in Express.js | REST Principles, HTTP Methods, Status Codes | Node.js Tutorial

REST API Design in Express.js | REST Principles, HTTP Methods, Status Codes | Node.js Tutorial JDCodebase

25 views - 1 month ago

Request Data Handling in Express.js | req.params, req.query, req.body Explained | CRUD API

Request Data Handling in Express.js | req.params, req.query, req.body Explained | CRUD API JDCodebase

30 views - 1 month ago

Middleware in Express.js | Built-in Middleware, Custom Middleware & Logger | Node.js Backend Series

Middleware in Express.js | Built-in Middleware, Custom Middleware & Logger | Node.js Backend Series JDCodebase

68 views - 1 month ago

Express Routing Explained for Beginners | GET, POST, PUT, DELETE in Express.js

Express Routing Explained for Beginners | GET, POST, PUT, DELETE in Express.js JDCodebase

27 views - 1 month ago

Express.js Tutorial for Beginners | Introduction to Express.js | Create Your First Express Server

Express.js Tutorial for Beginners | Introduction to Express.js | Create Your First Express Server JDCodebase

33 views - 1 month ago

Node.js HTTP Server Tutorial for Beginners | Create Your First Server | Node http Module

Node.js HTTP Server Tutorial for Beginners | Create Your First Server | Node http Module JDCodebase

23 views - 1 month ago

Node.js NPM Tutorial for Beginners | Package.json, Dependencies, npm init Explained

Node.js NPM Tutorial for Beginners | Package.json, Dependencies, npm init Explained JDCodebase

26 views - 1 month ago

Node.js Core Modules Explained (fs, path, os, events) | Beginner Friendly Tutorial

Node.js Core Modules Explained (fs, path, os, events) | Beginner Friendly Tutorial JDCodebase

20 views - 1 month ago

Node.js Modules Explained for Beginners | require() & module.exports | Web Dev Series

Node.js Modules Explained for Beginners | require() & module.exports | Web Dev Series JDCodebase

29 views - 1 month ago

Introduction to Node.js for Beginners | Node Architecture, V8 Engine & First Script

Introduction to Node.js for Beginners | Node Architecture, V8 Engine & First Script JDCodebase

27 views - 1 month ago

Backend Basics for Beginners | Client vs Server, HTTP, REST APIs, JSON Explained

Backend Basics for Beginners | Client vs Server, HTTP, REST APIs, JSON Explained JDCodebase

46 views - 1 month ago

React Performance & Internals | Re-renders, Virtual DOM, Reconciliation & DevTools (Beginner Guide)

React Performance & Internals | Re-renders, Virtual DOM, Reconciliation & DevTools (Beginner Guide) JDCodebase

20 views - 1 month ago

React Environment Variables & Error Handling | .env File, Async Errors & Error Boundaries

React Environment Variables & Error Handling | .env File, Async Errors & Error Boundaries JDCodebase

31 views - 1 month ago

Global Styling & Dark Mode in React + Tailwind | Layout Wrapper & localStorage Explained

Global Styling & Dark Mode in React + Tailwind | Layout Wrapper & localStorage Explained JDCodebase

17 views - 1 month ago

React Router Tutorial for Beginners | Navigation, Protected Routes & 404 Page

React Router Tutorial for Beginners | Navigation, Protected Routes & 404 Page JDCodebase

21 views - 1 month ago

React Router Complete Tutorial for Beginners | BrowserRouter, Routes, Params

React Router Complete Tutorial for Beginners | BrowserRouter, Routes, Params JDCodebase

29 views - 1 month ago

React Custom Hooks Tutorial for Beginners | Create Reusable Logic Step by Step

React Custom Hooks Tutorial for Beginners | Create Reusable Logic Step by Step JDCodebase

57 views - 1 month ago

LeetCode 349: Intersection of Two Arrays | JavaScript Solution Using Set | DSA

LeetCode 349: Intersection of Two Arrays | JavaScript Solution Using Set | DSA JDCodebase

6 views - 1 month ago

Redux DevTools & Best Practices | Debug Redux Like a Pro 🔥

Redux DevTools & Best Practices | Debug Redux Like a Pro 🔥 JDCodebase

45 views - 1 month ago

Sets in JavaScript for Beginners | Remove Duplicates, has(), Intersection | DSA Foundations

Sets in JavaScript for Beginners | Remove Duplicates, has(), Intersection | DSA Foundations JDCodebase

5 views - 1 month ago

Async Redux Toolkit Tutorial | createAsyncThunk, API Calls, Loading & Error Handling

Async Redux Toolkit Tutorial | createAsyncThunk, API Calls, Loading & Error Handling JDCodebase

44 views - 1 month ago

Group Anagrams (LeetCode 49) & First Unique Character (LeetCode 387) | HashMap Pattern | JS DSA

Group Anagrams (LeetCode 49) & First Unique Character (LeetCode 387) | HashMap Pattern | JS DSA JDCodebase

13 views - 1 month ago

React Redux Tutorial – useSelector, useDispatch & Connecting Components

React Redux Tutorial – useSelector, useDispatch & Connecting Components JDCodebase

49 views - 1 month ago

Frequency Pattern in DSA Explained | Map, Anagram, Duplicates | JavaScript | DSA Foundations

Frequency Pattern in DSA Explained | Map, Anagram, Duplicates | JavaScript | DSA Foundations JDCodebase

29 views - 1 month ago

Redux Core Concepts Explained Simply | Store, Slice, Actions, Reducers | Redux Toolkit Tutorial

Redux Core Concepts Explained Simply | Store, Slice, Actions, Reducers | Redux Toolkit Tutorial JDCodebase

27 views - 1 month ago

Introduction to Redux Toolkit | What is Redux? Redux vs Context API | React Tutorial

Introduction to Redux Toolkit | What is Redux? Redux vs Context API | React Tutorial JDCodebase

17 views - 1 month ago

When Context Is Not Enough in React | Context Limitations Explained

When Context Is Not Enough in React | Context Limitations Explained JDCodebase

15 views - 1 month ago

Build a Todo App with React Context API & Tailwind CSS | Full Project Tutorial

Build a Todo App with React Context API & Tailwind CSS | Full Project Tutorial JDCodebase

67 views - 1 month ago

Build Dark & Light Mode using Context API | React + Tailwind Project

Build Dark & Light Mode using Context API | React + Tailwind Project JDCodebase

66 views - 1 month ago

React Context API Explained for Beginners | createContext, Provider, useContext

React Context API Explained for Beginners | createContext, Provider, useContext JDCodebase

30 views - 1 month ago

Two Sum & Valid Anagram Explained in JavaScript | HashMap Pattern | LeetCode DSA

Two Sum & Valid Anagram Explained in JavaScript | HashMap Pattern | LeetCode DSA JDCodebase

9 views - 1 month ago

Refs & Performance Optimization in React – useRef, useMemo, useCallback & React.memo | JDCodebase

Refs & Performance Optimization in React – useRef, useMemo, useCallback & React.memo | JDCodebase JDCodebase

18 views - 1 month ago

Hashing in JavaScript for Beginners | Object vs Map | Frequency Counter | DSA Basics

Hashing in JavaScript for Beginners | Object vs Map | Frequency Counter | DSA Basics JDCodebase

14 views - 1 month ago

Fetching Data in React – Async Await & API Calls | Web Development Series | JDCodebase

Fetching Data in React – Async Await & API Calls | Web Development Series | JDCodebase JDCodebase

56 views - 1 month ago

Master useEffect in React – Lifecycle, Cleanup, API Calls & Timers

Master useEffect in React – Lifecycle, Cleanup, API Calls & Timers JDCodebase

33 views - 1 month ago