Web Development
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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

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HTML Learning Roadmap: From Basics to Advanced

1. Getting Started with HTML

Introduction to HTML: Understand what HTML is and its role in web development.

Structure of an HTML Document: Learn the basic structure of an HTML document (DOCTYPE, <html>, <head>, and <body>).

Tags and Elements: Learn about HTML tags, attributes, and elements.


2. Basic HTML Tags

Headings: Use <h1> to <h6> to create headings.

Paragraphs: Use <p> for paragraphs.

Links: Create hyperlinks with <a> tag.

Lists: Understand ordered (<ol>) and unordered (<ul>) lists.

Images: Embed images with <img>.



3. Text Formatting Tags

Bold, Italics, and Underline: Use <b>, <i>, and <u> for text styling.

Text Alignment: Use <center>, <left>, and <right>.

Paragraph Formatting: Learn how to adjust line breaks with <br> and indentation with <blockquote>.



4. HTML Forms

Form Basics: Use <form>, <input>, <textarea>, and <button> to create forms.

Input Types: Learn different input types like text, email, password, radio, checkbox, and submit.

Form Validation: Use required, minlength, maxlength, pattern attributes for validation.



5. Tables

Table Structure: Create tables using <table>, <tr>, <th>, and <td>.

Table Styling: Use colspan and rowspan for table layout.

Styling with CSS: Style tables with CSS for better presentation.



6. HTML Media

Audio and Video: Embed media with <audio> and <video> tags.

Embedding Content: Use <iframe> to embed external content like YouTube videos.



7. HTML5 New Features

Semantic Elements: Learn about <header>, <footer>, <article>, <section>, <nav>, and <aside> for better content structure.

New Form Elements: Use new form controls like <input type="date">, <input type="range">, <datalist>.

Geolocation API: Use the geolocation API to get the user's location.

Web Storage: Learn about localStorage and sessionStorage for client-side data storage.



8. Advanced HTML Techniques

Accessibility: Implement accessibility features using ARIA roles and attributes.

Forms and Accessibility: Use labels, fieldsets, and legends for better form accessibility.

Responsive Design: Understand the role of meta tags like viewport for responsive design.

HTML Validation: Learn how to validate HTML documents using tools like W3C Validator.



9. Best Practices

Code Organization: Use indentation and comments to organize your code.

SEO Best Practices: Use <title>, <meta>, and proper heading structure for search engine optimization.

HTML Optimization: Minimize HTML size for better page loading times.



10. Projects to Build

Beginner: Create a personal webpage, portfolio, or simple blog layout.

Intermediate: Build a product landing page or event registration form.

Advanced: Develop a responsive multi-page website with forms, tables, and embedded media.

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Web Development Summarised ☝️
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Website Development Roadmap – 2025

🔹 Stage 1: HTML – Learn the basics of web page structure.

🔹 Stage 2: CSS – Style and enhance web pages (Flexbox, Grid, Animations).

🔹 Stage 3: JavaScript (ES6+) – Add interactivity and dynamic features.

🔹 Stage 4: Git & GitHub – Manage code versions and collaborate.

🔹 Stage 5: Responsive Design – Make websites mobile-friendly (Media Queries, Bootstrap, Tailwind CSS).

🔹 Stage 6: UI/UX Basics – Understand user experience and design principles.

🔹 Stage 7: JavaScript Frameworks – Learn React.js, Vue.js, or Angular for interactive UIs.

🔹 Stage 8: Backend Development – Use Node.js, PHP, Python, or Ruby to
build server-side logic.

🔹 Stage 9: Databases – Work with MySQL, PostgreSQL, or MongoDB for data storage.

🔹 Stage 10: RESTful APIs & GraphQL – Create APIs for data communication.

🔹 Stage 11: Authentication & Security – Implement JWT, OAuth, and HTTPS best practices.

🔹 Stage 12: Full Stack Project – Build a fully functional website with both frontend and backend.
🔹 Stage 13: Testing & Debugging – Use Jest, Cypress, or other testing tools.
🔹 Stage 14: Deployment – Host websites using Netlify, Vercel, or cloud services.
🔹 Stage 15: Performance Optimization – Improve website speed (Lazy Loading, CDN, Caching).

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Backend Developer Essential Concepts 👆
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Skills to master as a web developer
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Here are some common frontend interview questions along with brief answers:

1. What is the DOM (Document Object Model)?
- Answer: The DOM is a programming interface for web documents. It represents the structure of a web page and allows scripts to dynamically access and update the content, structure, and style of a webpage.

2. Explain the difference between
null and undefined in JavaScript.
- Answer: null represents the intentional absence of any object value, while undefined represents a variable that has been declared but has not been assigned a value.

3. What are closures in JavaScript?
- Answer: Closures are functions that remember the scope in which they were created, even after that scope has exited. They have access to variables from their containing function's scope.

4. Describe the differences between CSS Grid and Flexbox.
- Answer: CSS Grid is a two-dimensional layout system, while Flexbox is one-dimensional. Grid is used for overall layout structure, while Flexbox is ideal for distributing space and aligning items within a container along a single axis.

5. What is responsive web design, and how do you achieve it?
- Answer: Responsive web design is an approach to design and coding that makes web pages render well on various devices and screen sizes. Achieve it through media queries, flexible grids, and fluid images.

6. Explain the "box model" in CSS.
- Answer: The box model describes how elements on a web page are rendered. It consists of content, padding, border, and margin, and these properties determine the element's total size.

7. How does the event delegation work in JavaScript?
- Answer: Event delegation is a technique where you attach a single event listener to a common ancestor of multiple elements instead of attaching listeners to each element individually. Events that bubble up from child elements can be handled by the ancestor.

8. What is the purpose of the
localStorage and sessionStorage objects in JavaScript?
- Answer: Both localStorage and sessionStorage allow you to store key-value pairs in a web browser. The key difference is that data stored in localStorage persists even after the browser is closed, whereas data in sessionStorage is cleared when the session ends (e.g., when the browser is closed).

9. Explain the same-origin policy in the context of web security.
- Answer: The same-origin policy is a security measure that restricts web pages from making requests to a different domain (protocol, port, or host) than the one that served the web page. It helps prevent cross-site request forgery (CSRF) and other security vulnerabilities.

10. What are the benefits of using a CSS preprocessor like Sass or Less?
- Answer: CSS preprocessors provide benefits such as variables, nesting, functions, and mixins, which enhance code reusability, maintainability, and organization. They allow you to write cleaner and more efficient CSS.

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