dart!

html.dart

import 'dart:html';

main() {
  var button = new ButtonElement();
  button
    ..id = 'confirm'
    ..text = 'Confirm'
    ..classes.add('important')
    ..onClick.listen((e) => window.alert('Confirmed!'));
  querySelector('#registration').children.add(button);
}

setup.sh

brew install dart dartium
brew linkapps dartium
cd /tmp
mkdir dart
cd dart

# Copied 'html' sample found at https://www.dartlang.org/docs/dart-up-and-running/ch01.html
dart/
› pst > a.dart

dart/
› time dart2js a.dart -o a.js
dart2js a.dart -o a.js  5.70s user 0.25s system 100% cpu 5.918 total

dart/
› time dart2js a.dart -o a.min.js --minify
dart2js a.dart -o a.min.js --minify  5.72s user 0.25s system 100% cpu 5.936 total

dart/
› ls -alh
total 456K
drwxr-xr-x  9 mfrawley wheel  306 Mar  5 12:22 ./
drwxrwxrwt 14 root     wheel  476 Mar  5 12:18 ../
-rw-r--r--  1 mfrawley wheel  264 Mar  5 12:21 a.dart
-rw-r--r--  1 mfrawley wheel 237K Mar  5 12:21 a.js
-rw-r--r--  1 mfrawley wheel 9.5K Mar  5 12:21 a.js.deps
-rw-r--r--  1 mfrawley wheel  41K Mar  5 12:21 a.js.map
-rw-r--r--  1 mfrawley wheel 101K Mar  5 12:22 a.min.js
-rw-r--r--  1 mfrawley wheel 9.5K Mar  5 12:22 a.min.js.deps
-rw-r--r--  1 mfrawley wheel  39K Mar  5 12:22 a.min.js.map

dart/
›