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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

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Flutter 

              
                import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      home: SamplePage(),
    ),
  );
}

class SamplePage extends StatelessWidget {
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Drawer'),
      ),
      drawer: Drawer(
        child: ListView(
          children: <Widget>[
            DrawerHeader(
              child: Text('ヘッダー'),
              decoration: BoxDecoration(
                color: Colors.blue,
              ),
            ),
            ListTile(
              title: Text("ボタン"),
              trailing: Icon(Icons.arrow_forward),
            ),
            ListTile(
              title: Text("ボタン"),
              trailing: Icon(Icons.arrow_forward),
            ),
            ListTile(
              title: Text("ボタン"),
              trailing: Icon(Icons.arrow_forward),
            ),
            ListTile(
              title: Text("ボタン"),
              trailing: Icon(Icons.arrow_forward),
            ),
            ListTile(
              title: Text("ボタン"),
              trailing: Icon(Icons.arrow_forward),
            ),
            ListTile(
              title: Text("ボタン"),
              trailing: Icon(Icons.arrow_forward),
            ),
            ListTile(
              title: Text("ボタン"),
              trailing: Icon(Icons.arrow_forward),
            ),
          ],
        ),
      ),
    );
  }
}
!
999px

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