React Hooks

useState Hook

Basic Example of useState

The `useState` hook is used to add state to functional components in React.

        
        const [count, setCount] = useState(0);
setCount(count + 1);

useState with Object

You can use `useState` to manage more complex state, such as objects or arrays.

        
        const [user, setUser] = useState({ name: "John", age: 30 });
setUser({ ...user, age: 31 });

useEffect Hook

Basic Example of useEffect

The `useEffect` hook is used to perform side effects in functional components.

        
        useEffect(() => {
  console.log("Component mounted!");
}, []);

useEffect with Dependencies

`useEffect` can be triggered by specific dependencies, making it useful for watching changes to props or state.

        
        useEffect(() => {
  console.log("State updated: " + count);
}, [count]);

useContext Hook

Basic Example of useContext

The `useContext` hook is used to access the value of a context in a functional component.

        
        const value = useContext(MyContext);

Using useContext with Provider

You can provide a context value in a parent component and access it in any child component.

        
        const MyProvider = ({ children }) => {
  const contextValue = "Hello, World!";
  return (
    <MyContext.Provider value={contextValue}>
      {children}
    </MyContext.Provider>
  );
};

const MyComponent = () => {
  const value = useContext(MyContext);
  return <div>{value}</div>;
};

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React Hooks

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