de> flag tells webpack to use development mode, which produces source maps for a better debugging experience.</p>
<p>The <code>--watch</code> flag tells webpack to watch the file system and automatically recreate <code>app.js</code> if file changes are detected.</p>
<p>Now you can run the script via <code>npm start</code> in your command line window. This looks up the <code>webpack</code> command in the NPM path, reads <code>index.js</code> and creates a file called <code>app.js</code> which includes both M