Logo

Developer learning path

News
React

CSS Modules in React

Introduction to React
What is React? Advantages of React JSX syntax Setting up the development environment
Components and Props
Components in React Functional Components Class Components Props PropTypes and defaultProps Component composition
State and Lifecycle Methods
State in React setState method Lifecycle Methods in Class Components Conditional Rendering based on the state
Handling Events
Event handling in React Binding Event Handlers Passing Arguments to Event Handlers Conditional Event Handling
Forms and User Input
Forms in React Controlled Components Uncontrolled Components Form Validation
Lists and Keys
Rendering Lists in React Keys Extracting Components with Keys
Components Lifecycle
Understanding Components Lifecycle Mounting, Updating and Unmounting Lifecycle Methods
Working with APIs
Making HTTP Requests with Axios Handling Responses with Promises Asyncawait syntax for making API calls
React Router
What is React Router? Installation Configuring Routes Navigating between pages using Link and NavLink components
Redux State Management
What is Redux Three principles of Redux Redux Store, Actions, and Reducers ReactRedux integration
Styling React Applications
Styling in React Inline styles CSS Modules Styled Components
Testing React Applications
Testing Fundamentals Testing React Components Integration Testing Using Jest and React Testing Library
Deployment and Optimization
Deployment options for React applications Performance Optimization Code Splitting React Lazy and Suspense
Next Steps
Advanced Topics Resources for continued learning Conclusion

CSS Modules

24

#description

CSS Modules is a way to generate unique names for CSS classes at runtime. It allows developers to write CSS code with local scoping, which means that the class names are unique to the component they are used in, and do not interfere with other components or global styles.

In React, CSS Modules is used by creating a separate CSS file for each component or by writing CSS inside the component itself, and then importing the CSS file or module into the component to use it.

When CSS Modules is used, the class names are automatically generated and added as attributes to the HTML elements at runtime. This means that developers do not need to worry about naming conflicts with other components or global styles.

Using CSS Modules has several benefits, including:
  1. Local scoping: CSS Modules automatically creates unique class names for each component, which ensures that the styles do not conflict with each other.
  1. No global scope: CSS Modules do not use a global namespace, which makes it easier to maintain your codebase, and reduces the risk of naming conflicts or unintended style changes.
  1. Easy to maintain: CSS Modules makes it easier to maintain your codebase, because the styles are scoped to the component and not the entire application.
  1. Better performance: Because CSS Modules generates unique class names at runtime, it reduces the amount of code that needs to be loaded into the browser, which can improve performance.

Overall, CSS Modules is a powerful way to improve the maintainability and performance of your React applications, and is recommended for any project that requires a modular approach to styling.

March 25, 2023

If you don't quite understand a paragraph in the lecture, just click on it and you can ask questions about it.

If you don't understand the whole question, click on the buttons below to get a new version of the explanation, practical examples, or to critique the question itself.