Web Development
Learn Web Development From Scratch 0️⃣ HTML / CSS 1️⃣ JavaScript 2️⃣ React / Vue / Angular 3️⃣ Node.js / Express 4️⃣ REST API 5️⃣ SQL / NoSQL Databases 6️⃣ UI / UX Design 7️⃣ Git / GitHub Admin: @love_data
Mostrar más📈 Análisis del canal de Telegram Web Development
El canal Web Development (@webdevcoursefree) en el segmento lingüístico de Inglés es un actor destacado. Actualmente la comunidad reúne a 78 450 suscriptores, ocupando la posición 1 639 en la categoría Tecnologías y Aplicaciones y el puesto 4 112 en la región India.
📊 Métricas de audiencia y dinámica
Desde su creación el невідомо, el proyecto ha mostrado un crecimiento acelerado, reuniendo a 78 450 suscriptores.
Según los últimos datos del 13 junio, 2026, el canal mantiene una actividad estable. En los últimos 30 días la variación de miembros fue de 580, y en las últimas 24 horas de 37, conservando un alto alcance.
- Estado de verificación: No verificado
- Tasa de interacción (ER): El promedio de interacción de la audiencia es 3.60%. Durante las primeras 24 horas tras publicar, el contenido suele obtener 1.29% de reacciones respecto al total de suscriptores.
- Alcance de las publicaciones: Cada publicación recibe en promedio 2 819 visualizaciones. En el primer día suele acumular 1 012 visualizaciones.
- Reacciones e interacción: La audiencia responde de forma activa: el promedio de reacciones por publicación es 11.
- Intereses temáticos: El contenido se centra en temas clave como html, css, javascript, github, git.
📝 Descripción y política de contenido
El autor describe el recurso como un espacio para expresar opiniones subjetivas:
“Learn Web Development From Scratch
0️⃣ HTML / CSS
1️⃣ JavaScript
2️⃣ React / Vue / Angular
3️⃣ Node.js / Express
4️⃣ REST API
5️⃣ SQL / NoSQL Databases
6️⃣ UI / UX Design
7️⃣ Git / GitHub
Admin: @love_data”
Gracias a la alta frecuencia de actualizaciones (últimos datos recibidos el 14 junio, 2026), el canal mantiene la vigencia y un amplio alcance. La analítica demuestra que la audiencia interactúa activamente con el contenido, lo que lo convierte en un punto de referencia dentro de la categoría Tecnologías y Aplicaciones.
<article>, <section>, <nav>, <header>). Improves accessibility and SEO.
4. What is the DOM
Document Object Model — a tree-like structure representing HTML elements. JavaScript can manipulate it to update content dynamically.
5. What is the difference between GET and POST methods
• GET: Sends data via URL, used for fetching
• POST: Sends data in body, used for submitting forms securely
6. What is the box model in CSS
Every HTML element is a box:
Content → Padding → Border → Margin
7. What is the difference between relative, absolute, and fixed positioning in CSS
• Relative: Moves element relative to its normal position
• Absolute: Positions element relative to nearest positioned ancestor
• Fixed: Stays in place even when scrolling
8. What is the difference between == and === in JavaScript
• ==: Compares values with type coercion
• ===: Strict comparison (value and type)
9. What is event bubbling in JavaScript
Events propagate from child to parent elements. Can be controlled using stopPropagation().
10. What is the difference between localStorage and sessionStorage
• localStorage: Persistent across sessions
• sessionStorage: Cleared when tab is closed
11. What is a RESTful API
An architectural style for designing networked applications using HTTP methods (GET, POST, PUT, DELETE) and stateless communication.
12. What is the difference between frontend and backend development
• Frontend: Client-side (UI/UX, HTML/CSS/JS)
• Backend: Server-side (databases, APIs, authentication)
13. What are common HTTP status codes
• 200 OK
• 404 Not Found
• 500 Internal Server Error
• 403 Forbidden
• 301 Moved Permanently
14. What is a promise in JavaScript
An object representing the eventual completion or failure of an async operation.
States: pending, fulfilled, rejected
15. What is the difference between synchronous and asynchronous code
• Synchronous: Executes line by line
• Asynchronous: Executes independently, doesn’t block the main thread
16. What is a CSS preprocessor
Tools like SASS or LESS that add features to CSS (variables, nesting, mixins) and compile into standard CSS.
17. What is the role of frameworks like React, Angular, or Vue
They simplify building complex UIs with reusable components, state management, and routing.
18. What is the difference between SQL and NoSQL databases
• SQL: Structured, relational (e.g., MySQL)
• NoSQL: Flexible schema, document-based (e.g., MongoDB)
19. What is version control and why is Git important
Version control tracks changes in code. Git allows collaboration, branching, and rollback. Platforms: GitHub, GitLab, Bitbucket
20. How do you optimize website performance
• Minify CSS/JS
• Use lazy loading
• Compress images
• Use CDN
• Reduce HTTP requests
👍 React for more Interview Resources #webdevelopment #interview #html #css #javascript #frontend #backendid: Unique identifier for a single element.
- class: Can be used on multiple elements for styling or scripting.
2️⃣ Q: What are media queries in CSS?
A: Media queries allow applying different styles based on device properties like screen width, height, orientation, etc. Used for responsive design.
3️⃣ Q: What is the difference between cookies, localStorage, and sessionStorage?
A:
- Cookies: Sent with every request, limited size (~4KB).
- localStorage: Stores data with no expiration.
- sessionStorage: Clears when tab is closed.
4️⃣ Q: What is the difference between inline, block, and inline-block elements?
A:
- Inline: Flows with text, can’t set width/height.
- Block: Takes full width, starts on new line.
- Inline-block: Like inline but respects width/height.
5️⃣ Q: How does event bubbling work in JavaScript?
A: Event bubbling means events propagate from the target element up to its parents, triggering any matching event listeners.
6️⃣ Q: What is a RESTful API?
A: A RESTful API follows REST principles, using standard HTTP methods and stateless communication to interact with resources (like JSON data).
7️⃣ Q: What is the difference between synchronous and asynchronous JavaScript?
A:
- Synchronous: Code runs one line at a time, blocking the thread.
- Asynchronous: Allows non-blocking operations using callbacks, promises, or async/await.
👍 Tap ❤️ for more! #webdev #interviews #javascript #html #css #coding #developer5 == '5' is true, but 5 === '5' is false.
3️⃣ Q: Explain the Box Model in CSS.
A: The CSS Box Model consists of:
- *Content* → The actual text/image
- *Padding* → Space around content
- *Border* → Around the padding
- *Margin* → Space outside the border
4️⃣ Q: What are the different HTTP methods?
A: Common methods:
- *GET* → Retrieve data
- *POST* → Send data
- *PUT* → Update existing data
- *DELETE* → Remove data
5️⃣ Q: What is the difference between null and undefined in JavaScript?
A:
- null → Assigned value meaning “no value”
- undefined → A variable that has been declared but not assigned a value
6️⃣ Q: What is responsive design?
A: It makes web pages look good on all devices (mobile, tablet, desktop) using CSS media queries and flexible layouts.
7️⃣ Q: What is the role of JavaScript in web development?
A: JavaScript adds interactivity to web pages — like dropdowns, sliders, form validation, etc.
8️⃣ Q: What is DOM?
A: The Document Object Model represents the page structure in a tree format, allowing JavaScript to interact with and manipulate HTML/CSS dynamically.
👍 Tap ❤️ for more! #webdev #interviews #coding #javascript #html #css #developerconst cors = require('cors');
app.use(cors());
🗂️ Database & Full Stack
1️⃣3️⃣ Q: SQL vs NoSQL – When to choose what?
👉 SQL: Structured, relational data (MySQL, Postgres)
👉 NoSQL: Flexible, scalable, unstructured (MongoDB)
1️⃣4️⃣ Q: What is Mongoose in MongoDB apps?
👉 ODM (Object Data Modeling) library for MongoDB. Defines schemas, handles validation & queries.
🌐 General / Deployment
1️⃣5️⃣ Q: How to deploy a full-stack app?
👉 Frontend: Vercel / Netlify
👉 Backend: Render / Heroku / Railway
👉 Add environment variables & connect frontend to backend via API URL.
👍 Tap ❤️ if this was helpful!
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