Styling React Components Made Easy with JSS: A Comprehensive Guide

JSS (or “JavaScript Style Sheets”) is a CSS-in-JS library that allows you to write styles in JavaScript and apply them to your React components. In this article, we’ll explore how JSS can be integrated and used with React JS, including steps on how to install JSS and set it up properly.

Installing JSS

To get started with JSS, you’ll need to install it as a dependency in your React project. You can do this using NPM or Yarn, depending on your preference.

npm install jss
// or
yarn add jss

Once JSS is installed, you’re ready to start using it in your React JS project.

Setting Up JSS in React JS

To use JSS in your React project, you’ll need to create a JSS instance and attach it to your React component tree.

import React from 'react';
import { create } from 'jss';
import { JssProvider } from 'react-jss';
import { createUseStyles } from 'react-jss';

// Create a JSS instance
const jss = create();

// Create a `useStyles` hook
const useStyles = createUseStyles({
  myButton: {
    color: 'red',
    backgroundColor: 'white',
    padding: '10px',
    borderRadius: '5px',
    '&:hover': {
      backgroundColor: 'red',
      color: 'white',
    },
  },
});

function MyButton(props) {
  const classes = useStyles();

  return (
    <button className={classes.myButton} {...props}>
      {props.children}
    </button>
  );
}

function App() {
  return (
    <JssProvider jss={jss}>
      <MyButton>Click me!</MyButton>
    </JssProvider>
  );
}

export default App;

In this example, we’re creating a JSS instance using the create function from the jss package. We’re also creating a useStyles hook using the createUseStyles function from the react-jss package. This hook takes an object of styles as its argument and returns a class name that can be applied to a React component.

We’re then using the useStyles hook to create a classes object, which contains the class names that we defined in the useStyles hook. We’re using these class names to apply styles to our MyButton component.

Finally, we’re wrapping the component in a JssProvider component, which passes the JSS instance to all child components that use the useStyles hook.

Conclusion

In this article, we’ve explored how JSS can be integrated and used with React JS. We’ve seen how to install JSS and set it up properly in a React JS project. We’ve also looked at how to use JSS with the createUseStyles hook to apply styles to a React component.