#React functional components how to#

You will also need a basic knowledge of JavaScript, which you can find in the How To Code in JavaScript series, along with a basic knowledge of HTML and CSS. You will be using React components, which you can learn about in our How To Create Custom Components in React tutorial.

You can find instructions for installing an application with Create React App at How To Set Up a React Project with Create React App. You will need to be able to create apps with Create React App.

#React functional components install#

To install this on macOS or Ubuntu 18.04, follow the steps in How to Install Node.js and Create a Local Development Environment on macOS or the Installing Using a PPA section of How To Install Node.js on Ubuntu 18.04. You will need a development environment running Node.js this tutorial was tested on Node.js version 10.20.1 and npm version 6.14.4. After making the alert component, you will refactor it using each of the styling options so that you can see the similarities and differences between the approaches. This means you will need to be cautious about style conflicts, since you have no way of knowing what styles the children components will have. The alert component will take any number of children. To illustrate these methods, you’ll build an example alert component that will either show a success style or an error style depending on the prop. Finally, if you want a combination, you can use a third-party library such as JSS to write your CSS in JavaScript syntax, a software concept known as CSS-in-JS. If you want to create styles that are integrated with the component, you can use inline style objects that use CSS property names as keys and the style as the value. To use plain CSS without any runtime data, you can import style sheets.

But all the options have one thing in common: They let you keep your component-specific styles close to the component, making components easier to reuse across a project or even across many unrelated projects.Įach of these options relies on CSS properties. These options each have advantages and disadvantages, some giving you more protection against style conflicts or allowing you to directly refer to props or other dynamic data. In this tutorial, you’ll learn three different ways to style React components: plain Cascading Style Sheets (CSS), inline styles with JavaScript-style objects, and JSS, a library for creating CSS with JavaScript. The author selected Creative Commons to receive a donation as part of the Write for DOnations program.