This tutorial is designed to help you understand React fragments and various use cases where they come in handy. Just comprehending their existence will enable you to write better React components and save a ton of time when creating and styling layouts. Although, the newer syntax doesn't support keys or attributes. React fragments are a simple yet elegant feature that was released with React v16.2.0. The other one is a new shorter syntax, using empty brackets, that does the same thing. It also allows React to show more useful error and warning messages. Fragments can be used using 2 syntax, the first one is using React.Fragment which we've used multiple times above. React doesn’t require using JSX, but most people find it helpful as a visual aid when working with UI inside the JavaScript code. Contains a URL or a URL fragment that the hyperlink points to. First, use your browser's dev tools to identify the class for the component slot you want to override. As an example, let's say you want to change the Slider component's thumb from a circle to a square. We will come back to components in a further section, but if you’re not yet comfortable putting markup in JS, this talk might convince you otherwise. Text wrapping will work with a dynamic button width. To customize a specific part of a component, you can use the class name provided by Material UI inside the sx prop. Instead of artificially separating technologies by putting markup and logic in separate files, React separates concerns with loosely coupled units called “components” that contain both. React embraces the fact that rendering logic is inherently coupled with other UI logic: how events are handled, how the state changes over time, and how the data is prepared for display. Below, you can find the basics of JSX necessary to get you started. We will explore rendering them to the DOM in the next section. JSX may remind you of a template language, but it comes with the full power of JavaScript. For example, the top div in my snippet is wider than the main (300px vs 200px), so the main becomes scrollable. Today there are many frameworks which support TypeScript out of the box: Create React App - TS docs Next.js - TS docs Gatsby - TS Docs All of these are great starting points. You will be able to scroll horizontally as long as the content of your main element exceeds the width of your main. You can use ternary condition to make your code more readable. TypeScript supports JSX and can correctly model the patterns used in React codebases like useState. We recommend using it with React to describe what the UI should look like. One of its advantages is that it does not create additional Dom nodes into rendered component (such as an empty div tag). Used to hold space with a set width and height div before image has come into. It is called JSX, and it is a syntax extension to JavaScript. Set to true for images that are known to be smaller than the parent column. This funny tag syntax is neither a string nor HTML.
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