What are the differences between JSX and CSS?

What are the differences between JSX and CSS?

JSX is a syntax extension for JavaScript that allows you to write HTML-like code in your JavaScript files, while CSS is a stylesheet language used for describing the presentation of a document written in HTML or XML.

Can you give me an example of how they work together?

Sure! In a React component, you might use JSX to define the structure of your UI, and then apply CSS classes to style those elements. For example:

function MyComponent() {
  return <div className="my-class">Hello, World!</div>;
}

And in your CSS file, you would define .my-class { color: blue; }.

Which one should I learn first if I'm new to web development?

It's generally a good idea to start with CSS, as it lays the foundation for styling web pages. Once you're comfortable with CSS, you can move on to learning JSX, especially if you're interested in React.

Are there any tools that can help me with both?

Yes! Tools like Create React App set up a development environment for you, and libraries like styled-components allow you to write CSS directly within your JSX.