front end 🔚

Here’s a structured list of essential front-end developer contents, including concepts, tools, and technologies you should learn or know if you're aiming to become (or grow as) a front-end developer in 2025:

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🧠 1. Core Web Fundamentals

These are the building blocks of the web.

HTML (HyperText Markup Language)

Semantic HTML

Forms and input types

Accessibility basics (ARIA)

CSS (Cascading Style Sheets)

Box model

Positioning (static, relative, absolute, fixed, sticky)

Flexbox & Grid

Media queries (Responsive Design)

Transitions, animations

Custom properties (CSS variables)

Preprocessors (SASS/SCSS - optional)

JavaScript (JS)

Variables, data types

Functions, arrays, objects

ES6+ features (let/const, arrow functions, destructuring, spread/rest)

DOM manipulation

Event handling

Fetch API / Async-Await / Promises

JSON

Modules (import/export)

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⚛️ 2. Front-End Frameworks & Libraries

React.js (most popular in 2025)

JSX

Components (functional & class-based)

Props & State

useEffect, useState, useContext, custom hooks

React Router

State management: Redux, Zustand, Jotai, etc.

Others (Optional based on job requirements):

Vue.js

Angular

Svelte

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🧰 3. Build Tools & Ecosystem

Version Control: Git, GitHub

Package Managers: npm, yarn, pnpm

Bundlers: Vite, Webpack, Parcel

Transpilers: Babel, TypeScript

Linters/Formatters: ESLint, Prettier

Testing Tools:

Unit: Jest, Vitest

Component: React Testing Library

E2E: Cypress, Playwright

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🎨 4. Styling Libraries & UI Frameworks

CSS Frameworks:

Tailwind CSS (very popular)

Bootstrap (older but still in use)

Material UI (for React)

Chakra UI, Ant Design

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🌐 5. APIs & Data Handling

REST APIs: GET, POST, PUT, DELETE

GraphQL: Querying data with Apollo Client or Relay

Axios or fetch() for API requests

Form Libraries: React Hook Form, Formik

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🧪 6. Performance, Optimization & Accessibility

Performance:

Code splitting

Lazy loading

Image optimization

Lighthouse audit

Accessibility (a11y):

Semantic HTML

Alt text

Keyboard navigation

Contrast ratio

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🔐 7. Authentication & Security Basics

Auth flows: JWT, OAuth

Secure local storage practices

HTTPS, CORS, CSRF, XSS prevention basics

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🧱 8. Deployment & DevOps Basics

Hosting platforms:

Vercel, Netlify (easy for front-end projects)

GitHub Pages

Cloudflare Pages

CI/CD basics (e.g., GitHub Actions)

Environment variables

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📚 9. Soft Skills & Other Knowledge

Debugging tools (Chrome DevTools)

Agile / Scrum understanding

Communication & collaboration (with designers, backend devs)

Reading and writing documentation

Time management & task tracking (Jira, Trello, etc.)

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🛠️ 10. Project Ideas to Practice

Portfolio website

Blog (with Markdown or CMS)

Weather app (API)

Todo app (CRUD)

E-commerce frontend (cart, product pages)

Dashboard UI

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Would you like a structured roadmap, or a PDF/Notion template to track your front-end developer journey?