For the project to build, these files must exist with exact filenames:
public/index.htmlis the page template;
You can delete or rename the other files.
You may create subdirectories inside src. For faster rebuilds, only files inside src are processed by Webpack.
You need to put any Kotlin and CSS files inside src, or Webpack won’t see them.
Only files inside public can be used from public/index.html.
Read instructions below for using assets from JavaScript and HTML.
You can, however, create more top-level directories.
They will not be included in the production build so you can use them for things like documentation.
Once the installation is done, you can run some commands inside the project folder:
Runs the app in development mode.
Open http://localhost:3000 to view it in the browser.
The page will reload automatically when you make edits.
You will see build errors and lint warnings in the console.
Builds the app for production to the build folder.
It ensures that React is bundled in production mode and the build is optimized for best performance.
The build is minified and the filenames include hashes for cache management. Your app is ready to be deployed.
You can debug the running app right in IntelliJ IDEA Ultimate using its built-in JavaScript debugger. The IDE will run a new instance of Chrome and attach a debugger to it.
Start your app by running npm start. Put the breakpoints in your Kotlin code.
Then select Debug in Chrome from the list of run/debug configurations on the top-right and click the green debug icon or press ^D on macOS or F9 on Windows and Linux to start debugging.
Currently, debugging is supported only in IntelliJ IDEA Ultimate 2017.3.
You can also debug your application using the developer tools in your browser.