frontend developer interview course with example

frontend dev course by manjunath kalburgi

1. Frontend Developer Interview Prep Course Comprehensive Preparation for Frontend Developer Interviews Author: Manjunath Kalburgi

2. HTML & CSS Fundamentals Semantic HTML Example: <article>, <section>, <nav> tags CSS Flexbox and Grid Example: Creating a responsive layout with flexbox Responsive Web Design Example: Using media queries to adjust layout CSS Preprocessors (SASS, LESS) Example: Nesting and variables in SASS Cross-browser compatibility Example: Using vendor prefixes for CSS properties

3. JavaScript Essentials ES6+ Features (let, const, arrow functions, etc.) Example: Using const for constants and let for variables DOM Manipulation Example: Adding an element to the DOM using document.createElement() Event Handling Example: Adding a click event listener to a button Asynchronous JavaScript (Promises, async/await) Example: Fetching data from an API using async/await Error Handling and Debugging Example: Using try/catch to handle errors

4. Advanced JavaScript Closures and Scope Example: Creating a closure to maintain state Prototypes and Inheritance Example: Using prototypes to create objects with shared methods The `this` keyword Example: Using `this` in different contexts (global, object, function) Callbacks and Promises Example: Using a callback to handle asynchronous operations Functional Programming (map, filter, reduce) Example: Using map to transform an array Understanding `var`, `let`, and `const` Example: Differences in scope and hoisting

5. TypeScript Basics Types and Interfaces Example: Defining a type for a user object Type Inference Example: Letting TypeScript infer the type of a variable Generics Example: Creating a generic function to handle different types Decorators Example: Using a decorator to log method calls TypeScript with React Example: Defining props and state types in a React component

6. ReactJS Core Concepts Components and Props Example: Creating a functional component with props State Management Example: Using useState to manage component state Lifecycle Methods Example: Using useEffect to handle side effects React Hooks (useState, useEffect, useContext, etc.) Example: Using useContext for global state Context API Example: Creating a context for theme management React Router Example: Setting up routes with React Router

7. State Management Libraries Redux Fundamentals Example: Creating a Redux store and dispatching actions Redux Toolkit Example: Using createSlice to simplify Redux code MobX Example: Using observable and action to manage state Recoil Example: Creating and using atoms for state management Comparing different state management libraries Example: Pros and cons of Redux vs. Context API

8. Component Design Patterns Higher-Order Components (HOCs) Example: Creating an HOC to add logging to a component Render Props Example: Using a render prop to pass a function as a child Compound Components Example: Creating a component with sub-components for flexibility Controlled vs. Uncontrolled Components Example: Managing form inputs with controlled components

9. Styling in React CSS-in-JS (Styled-Components, Emotion) Example: Creating a styled button component CSS Modules Example: Using CSS modules to scope styles locally Theming Example: Creating a theme and applying it with ThemeProvider Responsive Design Example: Using media queries in styled-components

10. Building and Optimizing React Applications Code Splitting Example: Using React.lazy and Suspense for code splitting Lazy Loading Example: Lazy loading images to improve performance Memoization Techniques (React.memo, useMemo, useCallback) Example: Using useMemo to memoize expensive calculations Performance Optimization Example: Using the React Profiler to identify performance bottlenecks Progressive Web Apps (PWAs) Example: Adding a service worker to create a PWA

11. Testing Frontend Applications Unit Testing with Jest Example: Writing a test for a React component Component Testing with React Testing Library Example: Testing a component's rendered output End-to-End Testing with Cypress Example: Writing an end-to-end test for a login flow Mocking API calls Example: Using jest.mock to mock API calls in tests

12. Version Control with Git Git Basics (clone, commit, push, pull) Example: Cloning a repository and making a commit Branching and Merging Example: Creating a new branch and merging it into main Pull Requests and Code Reviews Example: Creating a pull request and requesting a review Git Workflows (Git Flow, GitHub Flow) Example: Using GitHub Flow for feature development

13. Build Tools and Module Bundlers Webpack Configuration Example: Setting up a basic Webpack config Babel Transpiling Example: Using Babel to transpile ES6 to ES5 Task Runners (Gulp, Grunt) Example: Automating tasks with Gulp Linters and Formatters (ESLint, Prettier) Example: Configuring ESLint and Prettier for a project

14. CI/CD Pipelines Introduction to CI/CD Example: Benefits of continuous integration and deployment Setting up CI with GitHub Actions, Travis CI, CircleCI Example: Creating a CI workflow with GitHub Actions Automated Testing and Deployment Example: Running tests and deploying automatically Rollbacks and Versioning Example: Implementing rollbacks in a CI/CD pipeline

15. API Integration Fetch API Example: Fetching data from an API Axios Example: Making a GET request with Axios Handling Authentication and Authorization Example: Using JWT for authentication Working with RESTful APIs Example: CRUD operations with a RESTful API GraphQL Basics Example: Querying data with GraphQL

16. Soft Skills and Interview Preparation Behavioral Questions Example: Preparing answers for common behavioral questions System Design Fundamentals Example: Designing a scalable web application Mock Interviews Example: Practicing with mock interviews Portfolio Building Example: Creating a portfolio website Networking and Community Involvement Example: Participating in tech meetups and conferences