Example application written in Scala.js

This is another to-do list application. This time written in Scala.js and Scalatags as html-templates.

The application is inspired of event sourcing to create undo and redo functionality together with the scala standard library.

There is a working online version here

Get started

To get started, open sbt in this example project, and execute the task fastOptJS. This creates the file target/scala-2.11/example-fastopt.js. You can now open index-fastopt.html in your favorite Web browser!

During development, it is useful to use ~fastOptJS in sbt, so that each time you save a source file, a compilation of the project is triggered. Hence only a refresh of your Web page is needed to see the effects of your changes.

Run the tests

To run the test suite, you have to install Phantom.js

""" PhantomJS is a headless WebKit.... It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas, and SVG. """

I used Brew to install it with brew install phantomjs. But there is also a download page After you have installed phantom you can launch sbt and run test

The fully optimized version

For ultimate code size reduction, use fullOptJS. This will take several seconds to execute, so typically you only use this for the final, production version of your application. While index-fastopt.html refers to the JavaScript emitted by fastOptJS, index.html refers to the optimized JavaScript emitted by fullOptJS.