Web Development - HTML, CSS & JavaScript

Top 10 programming languages & frameworks for beginner web developers: 1. HTML/CSS – Basics of web structure & styling 2. JavaScript – Adds interactivity 3. Python – Backend & versatility 4. PHP – Server-side scripting 5. SQL – Database management 6. Ruby on Rails – Easy backend framework 7. Node.js – JavaScript backend runtime 8. React – Popular frontend library 9. Angular – Framework for building dynamic UIs 10. Bootstrap – Simplifies responsive design Web Development Best Resources: https://topmate.io/coding/930165 ENJOY LEARNING 👍👍

Here are 20 essential VS Code shortcuts for beginners: 1. Ctrl + P: Open any file quickly 📂 2. Ctrl + /: Toggle line comment 📝 3. Alt + Up/Down: Move a line up or down ↕️ 4. Ctrl + Shift + K: Delete the current line ❌ 5. Ctrl + B: Show/hide the sidebar 📚 6. Ctrl + Space: Trigger IntelliSense for code suggestions 💡 7. Ctrl + Shift + F: Search across files 🔍 8. Ctrl + D: Select the next occurrence of the selected text 📑 9. Ctrl + Shift + L: Select all occurrences of the current selection 🔗 10. Ctrl + Shift + P: Open the Command Palette 📜 11. Ctrl + F2: Rename all occurrences of a variable ✏️ 12. Ctrl + J: Show/hide the integrated terminal 💻 13. Ctrl + `: Open a new terminal 🔧 14. Ctrl + Shift + N: Open a new window 🖼️ 15. Ctrl + W: Close the current editor tab 🗂️ 16. Ctrl + Shift + E: Focus on the file explorer 🗃️ 17. Ctrl + Shift + G: Open the Git view 🔄 18. Ctrl + Shift + M: Open the Problems panel 🚨 19. Alt + Shift + Up/Down: Copy the line up or down 📋 20. Ctrl + Alt + Arrow keys: Split the editor window ✂️ Master these and level up your coding speed! 🚀

How does Docker Work?

⌨️ CSS shortcuts!! Save time and make your code cleaner with these CSS shortcuts.

11. 🦀 Rust — 38% performance-critical apps 12. 🎯 Dart — 35% with Flutter for web 13. 🔷 GraphQL — 33% API queries 14. 🍃 MongoDB — 30% NoSQL database 15. 🐳 Docker — 28% containerization 16. ☁️ AWS — 25% cloud services 17. 🔶 Svelte — 22% compile-time framework 18. 🔷 Next.js — 20% React framework 19. 🟣 Blazor — 18% .NET web apps 20. 🟢 Deno — 15% secure runtime

Top 10 Web Development Technologies 🌐 1. 🟨 JavaScript — 98% usage 2. 🔵 TypeScript — 78% adoption 3. 🟢 Node.js — 75% backend choice 4. ⚛️ React — 70% frontend framework 5. 🅰️ Angular — 55% enterprise use 6. 💚 Vue.js — 49% growing popularity 7. 🐍 Python — 48% for full-stack 8. 💎 Ruby on Rails — 45% rapid development 9. 🐘 PHP — 43% widespread use 10. ☕ Java — 40% enterprise solutions

Javascript Web Projects 👇👇 https://t.me/webdevelopmentbook/120

✌️ 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

⌨️ JavaScript: Array Methods Visualized

JavaScript Cheatsheet 📘 Do react,if you want more such notes 🚀

Master Javascript : The JavaScript Tree 👇 | |── Variables | ├── var | ├── let | └── const | |── Data Types | ├── String | ├── Number | ├── Boolean | ├── Object | ├── Array | ├── Null | └── Undefined | |── Operators | ├── Arithmetic | ├── Assignment | ├── Comparison | ├── Logical | ├── Unary | └── Ternary (Conditional) ||── Control Flow | ├── if statement | ├── else statement | ├── else if statement | ├── switch statement | ├── for loop | ├── while loop | └── do-while loop | |── Functions | ├── Function declaration | ├── Function expression | ├── Arrow function | └── IIFE (Immediately Invoked Function Expression) | |── Scope | ├── Global scope | ├── Local scope | ├── Block scope | └── Lexical scope ||── Arrays | ├── Array methods | | ├── push() | | ├── pop() | | ├── shift() | | ├── unshift() | | ├── splice() | | ├── slice() | | └── concat() | └── Array iteration | ├── forEach() | ├── map() | ├── filter() | └── reduce()| |── Objects | ├── Object properties | | ├── Dot notation | | └── Bracket notation | ├── Object methods | | ├── Object.keys() | | ├── Object.values() | | └── Object.entries() | └── Object destructuring ||── Promises | ├── Promise states | | ├── Pending | | ├── Fulfilled | | └── Rejected | ├── Promise methods | | ├── then() | | ├── catch() | | └── finally() | └── Promise.all() | |── Asynchronous JavaScript | ├── Callbacks | ├── Promises | └── Async/Await | |── Error Handling | ├── try...catch statement | └── throw statement | |── JSON (JavaScript Object Notation) ||── Modules | ├── import | └── export | |── DOM Manipulation | ├── Selecting elements | ├── Modifying elements | └── Creating elements | |── Events | ├── Event listeners | ├── Event propagation | └── Event delegation | |── AJAX (Asynchronous JavaScript and XML) | |── Fetch API ||── ES6+ Features | ├── Template literals | ├── Destructuring assignment | ├── Spread/rest operator | ├── Arrow functions | ├── Classes | ├── let and const | ├── Default parameters | ├── Modules | └── Promises | |── Web APIs | ├── Local Storage | ├── Session Storage | └── Web Storage API | |── Libraries and Frameworks | ├── React | ├── Angular | └── Vue.js ||── Debugging | ├── Console.log() | ├── Breakpoints | └── DevTools | |── Others | ├── Closures | ├── Callbacks | ├── Prototypes | ├── this keyword | ├── Hoisting | └── Strict mode | | END __

Learn these concepts to master React JS ✅ 𝟏. 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 - Functional Components - Class Components - JSX (JavaScript XML) Syntax 𝟐. 𝐏𝐫𝐨𝐩𝐬 (𝐏𝐫𝐨𝐩𝐞𝐫𝐭𝐢𝐞𝐬) - Passing Props - Default Props - Prop Types 𝟑. 𝐒𝐭𝐚𝐭𝐞 - useState Hook - Class Component State - Immutable State 𝟒. 𝐋𝐢𝐟𝐞𝐜𝐲𝐜𝐥𝐞 𝐌𝐞𝐭𝐡𝐨𝐝𝐬 (𝐂𝐥𝐚𝐬𝐬 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬) - componentDidMount - componentDidUpdate - componentWillUnmount 𝟓. 𝐇𝐨𝐨𝐤𝐬 (𝐅𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐚𝐥 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬) - useState - useEffect - useContext - useReducer - useCallback - useMemo - useRef - useImperativeHandle - useLayoutEffect 𝟔. 𝐄𝐯𝐞𝐧𝐭 𝐇𝐚𝐧𝐝𝐥𝐢𝐧𝐠 - Handling Events in Functional Components - Handling Events in Class Components 𝟕. 𝐂𝐨𝐧𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐑𝐞𝐧𝐝𝐞𝐫𝐢𝐧𝐠 - if Statements - Ternary Operators - Logical && Operator 𝟖. 𝐋𝐢𝐬𝐭𝐬 𝐚𝐧𝐝 𝐊𝐞𝐲𝐬 - Rendering Lists - Keys in React Lists 𝟗. 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭 𝐂𝐨𝐦𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧 - Reusing Components - Children Props - Composition vs Inheritance 𝟏𝟎. 𝐇𝐢𝐠𝐡𝐞𝐫-𝐎𝐫𝐝𝐞𝐫 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 (𝐇𝐎𝐂) - Creating HOCs - Using HOCs for Reusability 𝟏𝟏. 𝐑𝐞𝐧𝐝𝐞𝐫 𝐏𝐫𝐨𝐩𝐬 - Using Render Props Pattern 𝟏𝟐. 𝐑𝐞𝐚𝐜𝐭 𝐑𝐨𝐮𝐭𝐞𝐫 - <BrowserRouter> - <Route> - <Link> - <Switch> - Route Parameters 𝟏𝟑. 𝐍𝐚𝐯𝐢𝐠𝐚𝐭𝐢𝐨𝐧 - useHistory Hook - useLocation Hook 𝐒𝐭𝐚𝐭𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝟏𝟒. 𝐂𝐨𝐧𝐭𝐞𝐱𝐭 𝐀𝐏𝐈 - Creating Context - useContext Hook 𝟏𝟓. 𝐑𝐞𝐝𝐮𝐱 - Actions - Reducers - Store - connect Function (React-Redux) 𝟏𝟔. 𝐅𝐨𝐫𝐦𝐬 - Handling Form Data - Controlled Components - Uncontrolled Components 𝟏𝟕. 𝐒𝐢𝐝𝐞 𝐄𝐟𝐟𝐞𝐜𝐭𝐬 - useEffect for Data Fetching - useEffect Cleanup 𝟏𝟖. 𝐀𝐉𝐀𝐗 𝐑𝐞𝐪𝐮𝐞𝐬𝐭𝐬 - Fetch API - Axios Library 𝐄𝐫𝐫𝐨𝐫 𝐇𝐚𝐧𝐝𝐥𝐢𝐧𝐠 𝟏𝟗. 𝐄𝐫𝐫𝐨𝐫 𝐁𝐨𝐮𝐧𝐝𝐚𝐫𝐢𝐞𝐬 - componentDidCatch (Class Components) - ErrorBoundary Component (Functional Components) 𝟐𝟎. 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 - Jest Testing Framework - React Testing Library 𝟐𝟏. 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 - Memoization - Profiling and Performance Monitoring 𝟐𝟐. 𝐁𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 - Create React App (CRA) - Production Builds - Deployment Strategies 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 𝐚𝐧𝐝 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 𝟐𝟑. 𝐒𝐭𝐲𝐥𝐢𝐧𝐠 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 - Styled-components - CSS Modules 𝟐𝟒. 𝐒𝐭𝐚𝐭𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 - Redux - MobX 𝟐𝟓. 𝐑𝐨𝐮𝐭𝐢𝐧𝐠 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 - React Router - Reach Router Web Development Best Resources: https://topmate.io/coding/930165 ENJOY LEARNING 👍👍

Here is a great JavaScript interview question! What the heck is a Promise doing under the hood? In JavaScript, things usually happen one after the other. It's like a checklist each item gets done before moving to the next. When a function returns a Promise, it's like making a promise to do something, like fetch data from the internet. But JavaScript doesn't wait around for the data to come back. Instead, it moves on to the next task. Now, here's where things get interesting. While JavaScript is busy doing other stuff, like running more code, the Promise is off fetching data in the background. Once the data is fetched, the Promise is fulfilled, and it has some information to share. But JavaScript needs to know when it's time to handle that information. That's where the onFulfilled part of the Promise comes in. When the Promise is fulfilled, JavaScript takes the onFulfilled code and puts it in a special queue, ready to be run. Now, async/await enters the scene. When we mark a function as async, we're telling JavaScript, "Hey, this function might take some time to finish, so don't wait up for it." And when we use the await keyword inside an async function, it's like saying, "Hold on a sec, JavaScript. I need to wait for something important before moving on." So, when JavaScript encounters an await keyword, it pauses and lets the async function do its thing. If that thing happens to be a Promise, JavaScript knows it can move on to other tasks while waiting for the Promise to resolve. Once the Promise is resolved, JavaScript picks up where it left off and continues running the code. Promises and async/await allow JavaScript to handle asynchronous tasks while keeping things organized and in order. Promises handle the background tasks, while async/await makes it easier to work with them in our code, ensuring everything happens in the right sequence.

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