Learn React Hooks for Frontend Development/

...

Testing the useContext Hook

Learn how React context simplifies user data access and updates across components.

We'll cover the following...

Application structure
- Accessing user information with context
Changing the context value
- Login process and redirection
- User login and Logout importance

Press + to interact

function App({ initialUser }) {
  // Set the user object initially
  const user = initialUser;
  // Render the Header and Main components, passing the user object
  return (
    <div>
      <Header user={user} />
      <Main user={user} />
    </div>
  );
}
// Header component: Displays the logo
const Header = ({ user }) => {
  // Render the Logo component, passing the user object
  return <Logo user={user} />;
}
// Logo component: Displays the user logo and the username
const Logo = ({ user }) => {
  return (
    <div>
      <img src={user.imageUrl} alt="User Logo" />
      <span>{user.username}</span>
    </div>
  );
}

Prologue

Introducing the Function Component

Crafting States in Functions

Hooking into React

Use State to Jumpstart Components

Use Effect to Handle Side Effects

Use Memo to Boost Performance

Use Context to Cover an Area

Use Ref to Hide Stuff

Use Custom Hooks to Reuse Logic

Conclusion

Appendix: Exploring JavaScript and React

Testing the useContext Hook

Application structure