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scalajs-velocity Logo


Scala.js bindings for velocity.js and example applications

To use as a library, just pull in from

Build Status

Example apps showing the use of Scala.js with Velocity.js The bindings for Velocity.js are in com.felstar.scalajs.velocity

Get started

To get started, run sbt ~fastOptJS in this example project.

Obviously you need to have SBT installed.

This should download dependencies and prepare the relevant javascript files. It then kicks off a web server to serve the html and JS files.

If you open localhost:12345/target/scala-2.11/classes/velocity-dev.html in your browser, it will show you a sample app, doing various animations and Scala code. Its not meant to be pretty, simply instructive. Do open the Console to see debug messages. There are also 3 other code samples.

Live Demo

Basic velocity demo

SVG demo

UI Pack demo

Morph button demo


If you change your source HTML (inside /src/main/resources) or Scala (inside /src/main/scala/example), sbt will recompile as needed. You then just have to refresh the page to see the new version. Hopefully having an example application will make it clearer on how to use Velocity.js from Scala, i.e. monkey see, monkey do.

The optimized version

Run sbt fullOptJS for an optimized version of the final application, useful for final publication. You may well need to copy over XXX-dev.html to get your latest changes. Be sure to refer to the correct JS as well, as it will have a different name than the fast compiled version. e.g.

<script type="text/javascript" src="../scala-js-velocity-js-example-opt.js"></script>

Eclipse integration

If you want to edit in Eclipse (can't compile yet, but still very useful having full IDE with code completion), just run sbt eclipse the open the generated .project file inside eclipse. Keep sbt running in order to do the JS Compile.


This is just a quick proof of concept and some bindings for those wanting to use Velocity.js from Scala.js. Feel free to get in contact with any issues etc.


Scala.js bindings for Velocity.js and example applications







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