How to use the useWindowSize hook for responsive font sizes in Next.js

In Next.js, you can use the useWindowSize hook to make your font sizes responsive based on the window size. To achieve this, you'll typically need to calculate the font size dynamically based on the window dimensions. Here's a step-by-step guide:

1. Install the react-use library, which provides a useWindowSize hook.

   bashCopy code
   npm install react-use
   

   or

   bashCopy code
   yarn add react-use
   

2. Create a custom hook to manage your responsive font size.

   jsxCopy code
   // utils/hooks.js
   import { useWindowSize } from 'react-use';
   
   export const useResponsiveFontSize = () => {
     const { width } = useWindowSize();
   
     // Define your font size calculation logic based on the window width
     const calculateFontSize = () => {
       // Adjust this logic based on your design requirements
       return Math.min(16, width / 50); // Example: Font size increases as the window width increases
     };
   
     const fontSize = calculateFontSize();
   
     return { fontSize };
   };
   

3. Use the custom hook in your component.

   jsxCopy code
   
   

4. In Next.js, you can use the useWindowSize hook to make your font sizes responsive based on the window size. To achieve this, you'll typically need to calculate the font size dynamically based on the window dimensions. Here's a step-by-step guide:

   1. Install the react-use library, which provides a useWindowSize hook.

      bashCopy code
      npm install react-use
      

      or

      bashCopy code
      yarn add react-use
      

   2. Create a custom hook to manage your responsive font size.

      jsxCopy code
      // utils/hooks.js
      import { useWindowSize } from 'react-use';
      
      export const useResponsiveFontSize = () => {
        const { width } = useWindowSize();
      
        // Define your font size calculation logic based on the window width
        const calculateFontSize = () => {
          // Adjust this logic based on your design requirements
          return Math.min(16, width / 50); // Example: Font size increases as the window width increases
        };
      
        const fontSize = calculateFontSize();
      
        return { fontSize };
      };
      

   3. Use the custom hook in your component.

      jsxCopy code
      // components/ResponsiveText.js
      import React from 'react';
      import { useResponsiveFontSize } from '../utils/hooks';
      
      const ResponsiveText = ({ children }) => {
        const { fontSize } = useResponsiveFontSize();
      
        return <p style={{ fontSize: `${fontSize}px` }}>{children}</p>;
      };
      
      export default ResponsiveText;

5. Integrate the ResponsiveText component into your pages.

   jsxCopy code
   // pages/index.js
   import React from 'react';
   import ResponsiveText from '../components/ResponsiveText';
   
   const Home = () => {
     return (
       <div>
         <h1>Responsive Font Size Example</h1>
         <ResponsiveText>This text has a responsive font size.</ResponsiveText>
       </div>
     );
   };
   
   export default Home;
   

Now, when you use the ResponsiveText component, it will automatically adjust the font size based on the window dimensions. Adjust the calculation in the useResponsiveFontSize hook according to your design needs.