Optimización de fuentes con Next.js

How to optimize a Google font in Next.js?

Font customization in your application is essential to achieve an attractive and distinctive design. The integration of Google fonts in Next.js is not only simple, but also allows you to apply advanced configurations that optimize the performance of your application. Here we guide you, step by step, on how to perform this process.

How to import and configure a Google Font?

To integrate a Google Font in Next.js, we follow a structured method that offers customizable options:

1. Import the appropriate package: use NextFontGoogle to import fonts. Write the following code to start the process:

   import { Roboto } from 'next/font/google';

2. Create an instance of the font: Once the package is imported, the next step is to create an instance of the desired font (e.g. Roboto), and pass specific settings to it:

   const roboto = Roboto({ weight: ['100', '300', '500', '700'], // Define font weights subsets: ['latin'], // Character subsets});

   • Font Weights: You can choose to define multiple weights, which is useful to give different typographic styles to your application.
   • Subsets: Allows you to optimize character loading. In this case, we use the subset 'latin', ideal for texts in English or romance languages.

How to apply the selected font to the application?

Once the font is configured, the last step is to apply it to the whole of your application, ensuring visual uniformity:

1. Assign className to the container: using the created font instance, we apply className to the body or main container:

   function MyApp() { return ( <div className={roboto.className}> {/* Your content*/} </div> );}

2. Verify in the browser: After applying the source, it is always advisable to verify that there are no errors and that the style has been applied correctly.

What benefits and recommendations can we get?

When managing fonts from Google in Next.js, multiple possibilities open up, but there are also aspects to consider to optimize:

• Bundle optimization: the more weights and subsets you import, the more the bundle size will grow. Evaluate using only those strictly necessary to maintain efficiency.
• Subset Versatility: Consider the specific characters your application needs. Each language may require different subsets, use them to avoid unnecessary loads.
• Dynamic Exploration: Take advantage of TypeScript to explore all possible options and settings directly from the code editor, which will enrich your customization options.

Implementing and optimizing fonts is just one of many steps to improve the user experience in your application. Keep researching, experimenting and always look for ways to improve your web development skills, keep learning and improving your projects!