#Unpkg reactdom how to#
#Unpkg reactdom install#
#Unpkg reactdom full#
#Unpkg reactdom code#
#Unpkg reactdom download#

When you edit the source file with JSX, the transform will re-run automatically.Īs a bonus, this also lets you use modern JavaScript syntax features like classes without worrying about breaking older browsers.

#Unpkg reactdom code#

If you now create a file called src/like_button.js with this JSX starter code, the watcher will create a preprocessed like_button.js with the plain JavaScript code suitable for the browser. Perform it in the same folder, and then try again.ĭon’t wait for it to finish - this command starts an automated watcher for JSX. If you see an error message saying “You have mistakenly installed the babel package”, you might have missed the previous step. Npx is not a typo - it’s a package runner tool that comes with npm 5.2+. Run JSX PreprocessorĬreate a folder called src and run this terminal command: Both React and the application code can stay as tags with no changes.Ĭongratulations! You just added a production-ready JSX setup to your project.

#Unpkg reactdom install#

Step 2: Run npm install using npm here only to install the JSX preprocessor you won’t need it for anything else.Step 1: Run npm init -y (if it fails, here’s a fix).Go to your project folder in the terminal, and paste these two commands: The only requirement is to have Node.js installed on your computer. Essentially, adding JSX is a lot like adding a CSS preprocessor. Add JSX to a ProjectĪdding JSX to a project doesn’t require complicated tools like a bundler or a development server.

Instead, in the next section you will set up a JSX preprocessor to convert all your tags automatically. When you’re ready to move forward, remove this new tag and the type='text/babel' attributes you’ve added. However, it makes your website slow and isn’t suitable for production. This approach is fine for learning and creating simple demos.

#Unpkg reactdom download#

Here is an example HTML file with JSX that you can download and play with. Now you can use JSX in any tag by adding type='text/babel' attribute to it. If you already minify the application scripts, your site will be production-ready if you ensure that the deployed HTML loads the versions of React ending in : Tip: Minify JavaScript for Productionīefore deploying your website to production, be mindful that unminified JavaScript can significantly slow down the page for your users.

Inside React code, it’s easier to use component composition instead. This strategy is mostly useful while React-powered parts of the page are isolated from each other. Here is an example that displays the “Like” button three times and passes some data to it:

#Unpkg reactdom full#

You have just added the first React component to your website.Ĭheck out the next sections for more tips on integrating React.ĭownload the full example (2KB zipped) Tip: Reuse a ComponentĬommonly, you might want to display React components in multiple places on the HTML page. These three lines of code find the we added to our HTML in the first step, create a React app with it, and then display our “Like” button React component inside of it. querySelector ( '#like_button_container' ) const root = ReactDOM. Add an empty tag to mark the spot where you want to display something with React. Optional: Download the full example (2KB zipped) Step 1: Add a DOM Container to the HTMLįirst, open the HTML page you want to edit. There will be no complicated tools or install requirements - to complete this section, you only need an internet connection, and a minute of your time. You can follow along with your own website, or create an empty HTML file to practice.

#Unpkg reactdom how to#

In this section, we will show how to add a React component to an existing HTML page.

Optional: Try React with JSX (no bundler necessary!).

You can then either gradually expand its presence, or keep it contained to a few dynamic widgets. With a few lines of code and no build tooling, try React in a small part of your website. The majority of websites aren’t, and don’t need to be, single-page apps. React components are a great way to do that. Perhaps you only want to add some “sprinkles of interactivity” to an existing page. React has been designed from the start for gradual adoption, and you can use as little or as much React as you need. Use as little or as much React as you need.