Code Material

🔰 Node.js + Express Roadmap for Beginners 2025 ├── ⚙️ What is Node.js? Event-Driven & Non-Blocking I/O ├── 📦 NPM Modules & Package.json ├── 🧱 Core Modules (fs, path, http) ├── 🚀 Setting Up Express Server ├── 🔁 RESTful APIs with Express (GET, POST, PUT, DELETE) ├── 🧪 Mini Project: Simple Notes API ├── 📦 Middleware & Error Handling ├── 🔐 Basic Authentication (JWT, Bcrypt) ├── 🧪 Mini Project: Login/Signup API with JWT ├── 🌐 Connecting to MongoDB using Mongoose ├── 📂 MVC Pattern in Backend ├── 🧪 Mini Project: Blog API with CRUD Operations ├── ✅ Bonus: CORS, Rate Limiting, Deployment on Render #nodejs

The Indian passport has made a strong recovery, climbing eight spots in the latest #HenleyPassportIndex, its strongest jump to date. India now holds the 77th position, an improvement from its 85th ranking last year, this comes after last year saw India drop five places in ranking.

This will help Crack your next Java Interview even if you have 5+ years of experience! 𝗧𝗼𝗽𝗶𝗰 𝟭: 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗳𝗹𝗼𝘄 𝗮𝗻𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 - Please tell me about your project and its architecture, Challenges faced? - What was your role in the project? Tech Stack of project? why this stack? - Problem you solved during the project? How collaboration within the team? - What lessons did you learn from working on this project? 𝗧𝗼𝗽𝗶𝗰 𝟮: 𝗖𝗼𝗿𝗲 𝗝𝗮𝘃𝗮 - String Concepts/Hashcode-Equal Methods - Immutability - OOP concepts - Serialization - Collection Framework - Exception Handling - Multithreading - Java Memory Model - Garbage collection 𝗧𝗼𝗽𝗶𝗰 𝟯: 𝗝𝗮𝘃𝗮-𝟴/𝗝𝗮𝘃𝗮-𝟭𝟭/𝗝𝗮𝘃𝗮𝟭𝟳 - Java 8 features - Default/Static methods - Lambda expression - Functional interfaces - Optional API - Stream API - Pattern matching - Text block - Modules 𝗧𝗼𝗽𝗶𝗰 𝟰: 𝗦𝗽𝗿𝗶𝗻𝗴 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸, 𝗦𝗽𝗿𝗶𝗻𝗴-𝗕𝗼𝗼𝘁, 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲, 𝗮𝗻𝗱 𝗥𝗲𝘀𝘁 𝗔𝗣𝗜 - Dependency Injection/IOC, Spring MVC - Configuration, Annotations, CRUD - Bean, Scopes, Profiles, Bean lifecycle - App context/Bean context - AOP, Exception Handler, Control Advice - Security (JWT, Oauth) - Actuators - WebFlux and Mono Framework - HTTP methods - JPA - Microservice concepts - Spring Cloud 𝗧𝗼𝗽𝗶𝗰 𝟱: 𝗛𝗶𝗯𝗲𝗿𝗻𝗮𝘁𝗲/𝗦𝗽𝗿𝗶𝗻𝗴-𝗱𝗮𝘁𝗮 𝗝𝗽𝗮/𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 (𝗦𝗤𝗟 𝗼𝗿 𝗡𝗼𝗦𝗤𝗟) - JPA Repositories - Relationship with Entities - SQL queries on Employee department - Queries, Highest Nth salary queries - Relational and No-Relational DB concepts - CRUD operations in DB - Joins, indexing, procs, function 𝗧𝗼𝗽𝗶𝗰 𝟲: 𝗖𝗼𝗱𝗶𝗻𝗴 - DSA Related Questions - Sorting and searching using Java API - Stream API coding Questions 𝗧𝗼𝗽𝗶𝗰 𝟳: 𝗗𝗲𝘃𝗼𝗽𝘀 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 𝗼𝗻 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 𝗧𝗼𝗼𝗹𝘀 - These types of topics are mostly asked by managers or leads who are heavily working on it, That's why they may grill you on DevOps/deployment-related tools, You should have an understanding of common tools like Jenkins, Kubernetes, Kafka, Cloud, and all 𝗧𝗼𝗽𝗶𝗰𝘀 𝟴: 𝗕𝗲𝘀𝘁 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗲 - The interviewer always wanted to ask about some design patterns, it maybe Normal design patterns like singleton, factory, or observer patterns to know that you can use these in coding All the best ❤️ ~ @CodeMaterial 💎

Have you seen those websites which shows a list of brands or images with a marquee effect, that seem to go on forever? Here is a tutorial on how to implement exactly that 🤩 in CSS

𝗧𝗵𝗲 𝗯𝗲𝘀𝘁 𝗰𝗼𝗱𝗶𝗻𝗴 𝗹𝗲𝘀𝘀𝗼𝗻 𝘆𝗼𝘂’𝗹𝗹 𝗿𝗲𝗰𝗲𝗶𝘃𝗲 𝘁𝗼𝗱𝗮𝘆: Master the fundamentals of programming—they are the backbone of every great software you’ll ever build. -> Variables store your data. Know what you’re holding and why—it’s the first step to clean, readable logic. -> Conditions & Loops shape the behavior of your code. They allow your programs to make decisions and repeat tasks—smartly and efficiently. -> Functions are your code’s superpower. Reuse logic, stay DRY (Don’t Repeat Yourself), and build clean, modular systems.' -> Debugging isn’t a chore—it’s a chance to become a better thinker. Every bug fixed is a lesson learned. In a world full of users, become a creator. Code to solve, not just to build. Learn, write, break, fix—and grow. Always follow best practices: - Meaningful variable names - Writing readable, maintainable code - Testing early and often One bad habit can cost you hours. One good habit can save you days.

🤑 How many of you invest in crypto currency?

I love $BNB

✌️ 25 Javascript Path Files Used To Store Sensitive Information In Web Application:- 1️⃣ /js/config.js 2️⃣ /js/credentials.js 3️⃣ /js/secrets.js 4️⃣ /js/keys.js 5️⃣ /js/password.js 6️⃣ /js/api_keys.js 7️⃣/js/auth_tokens.js 8️⃣/js/access_tokens.js 9️⃣/js/sessions.js ♾ 1️⃣ /js/authorization.js 2️⃣ /js/encryption.js 3️⃣ /js/certificates.js 4️⃣ /js/ssl_keys.js 5️⃣ /js/passphrases.js 6️⃣ /js/policies.js 7️⃣ /js/permissions.js 8️⃣ /js/privileges.js 9️⃣ /js/hashes.js ♾ 1️⃣ /js/salts.js 2️⃣ /js/nonces.js 3️⃣ js/signatures.js 4️⃣ js/digests.js 5️⃣ js/tokens.js 6️⃣ js/cookies.js 7️⃣ /js/topsecr3tdonotlook.js

5 beginner-friendly web development projects that can help you improve your skills 1. Personal Website or Portfolio:    - Create a website that showcases your resume, projects, and skills.    - Practice HTML and CSS to design the layout and style it. 2. To-Do List Application:    - Build a simple to-do list app using HTML, CSS, and JavaScript.    - Learn about DOM manipulation, event handling, and local storage. 3. Weather App:    - Develop a web app that fetches and displays weather information for a user's location.    - Use HTML, CSS, JavaScript, and APIs like OpenWeatherMap. 4. Blog or Blogging Platform:    - Create a basic blog or expand it into a blogging platform.    - Learn about databases (e.g., SQLite), server-side scripting (e.g., Node.js), and user authentication. 5. E-commerce Product Page:    - Design a product page for an e-commerce site.    - Practice building product grids, adding product details, and implementing a shopping cart feature. These projects cover a range of web development skills, from front-end design to back-end development. As you work on them, you'll gain experience and confidence in web development. Enjoy Learning! ~ @CodeMaterial 💎

Breaking 🥔 India's Vice President Jaydeep Dhankar Resigns From His Post.

International Mathematical Olympiad 2025

That's right, CSS inside HTML 😁

At first, it might throw you off that we are writing CSS media queries inside HTML, but it is a necessity for this setup to work properly. Think about it 🤔 the browser has to choose an image to render, even before any CSS is loaded into the page!

This element is not limited to just dimension based media queries, but rather any media query! So you could do things like 💭 Different images for different orientaations 💭 Different image if user prefers high contrast 💭 Different images for different color schemes (light, dark) The possibilities are endless 🚀

Suggest me a good laptop under 50k budget. Basically for coding + chota mota games ( valo or gta 💀)

🔰 C++ Roadmap for Beginners 2025 ├── 🧠 Introduction to C++ & How It Works ├── 🧰 Setting Up Environment (IDE, Compiler) ├── 📝 Basic Syntax & Structure ├── 🔢 Variables, Data Types & Constants ├── ➕ Operators (Arithmetic, Relational, Logical, Bitwise) ├── 🔁 Flow Control (if, else, switch) ├── 🔄 Loops (for, while, do...while) ├── 🧩 Functions (Declaration, Definition, Recursion) ├── 📦 Arrays, Strings & Vectors ├── 🧱 Pointers & References ├── 🧮 Dynamic Memory Allocation (new, delete) ├── 🏗 Structures & Unions ├── 🏛 Object-Oriented Programming (Classes, Objects, Inheritance, Polymorphism) ├── 📂 File Handling in C++ ├── ⚠️ Exception Handling ├── 🧠 STL (Standard Template Library - vector, map, set, etc.) ├── 🧪 Mini Projects (Bank System, Student Record, etc.) Like for the detailed explanation ❤️ Enjoy Learning! ~ @CodeMaterial 💎

🔰 C++ Roadmap for Beginners 2025 ??

Frontend vs Backend👨‍💻 Here are the main points about frontend and backend development: Frontend: 1. Client-side aspect of web development. 2. User interacts directly with the frontend. 3. Includes user interface design, layout, and functionality. 4. Technologies: HTML, CSS, JavaScript. 5. Responsible for what users see and interact with on the browser. 6. Executes on the user's device (browser). Backend: 1. Server-side aspect of web development. 2. Users don't directly interact with the backend. 3. Manages server, application logic, and database interactions. 4. Technologies: Python, Java, Ruby, etc. 5. Handles user requests, processes data, and sends responses. 6. Executes on the server.

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Input Types Cheat Sheet 👨‍💻