React JS Masterclass - Go From Zero To Job Ready - Custom Hook: useFetch / 070

The video tutorial covers the creation of a custom hook, useFetch, to streamline data fetching in React applications. It explains setting up state and useEffect, constructing dynamic API paths, and securing API keys using environment variables. The tutorial concludes with a preview of implementing search functionality.

What is the primary purpose of creating a custom hook like useFetch?

• To manage state and side effects in a reusable way

• To handle CSS styling

• To directly manipulate the DOM

• To replace the need for React components

Which React hook is used to manage side effects in the useFetch hook?

• useReducer

• useContext

• useEffect

• useState

Why is it unnecessary to include the full URL in the useFetch hook?

• Because the full URL is too long

• Because the base URL and API key are common for all requests

• Because URLs are automatically generated

• Because URLs are not needed for API requests

What is the benefit of defining API paths for each route?

• It eliminates the need for API keys

• It simplifies the code by using a single API path

• It allows for dynamic URL construction based on the route

• It reduces the number of API requests

How can environment variables help in managing API keys?

• They automatically encrypt API keys

• They eliminate the need for API keys

• They enable secure storage and access of API keys

• They allow API keys to be hardcoded in the source code

What is the purpose of the .env file in a React project?

• To define CSS styles

• To list all project dependencies

• To store environment-specific variables securely

• To configure the React router

What is the significance of the 'React app' prefix in environment variables?

• It is a convention for naming CSS classes

• It is used to differentiate between development and production variables

• It is required for all environment variables in React

• It is used to define API endpoints

Why is it important to add the .env file to .gitignore?

• To avoid pushing sensitive information to version control

• To improve code readability

• To ensure faster build times

• To prevent syntax errors in the code

What should be done after modifying the .env file to ensure changes take effect?

• Clear the browser cache

• Restart the development server

• Reinstall all dependencies

• Rebuild the project

What is the next step mentioned for implementing search functionality?

• Changing the API provider

• Adding an onClick event to activate search

• Removing the useFetch hook

• Creating a new component for search