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If you notice that you’re getting comfortable with build tools and want them to do more for you, the next section describes some of the most popular and approachable toolchains.Let's face it, forms are really verbose in The tool we just used is called Babel, and you can learn more about it from its documentation. 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 react 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 react install#
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