Friday, September 05, 2014

IDE for Haste projects

I finished an Elm-like IDE for Haste projects. Haste is a compiler from Haskell to Javascript. The software is at: 


Running in a heroku instance with a simple example:


Besides to edit-compile and run, it can also import , compile and run haste projects from git repositories (Although this, like the rest of the project is experimental).

I use it for my hplayground framework but it can run any haste project.

Using playground is easy to translate console programs to the browser and have reactive effects

A simple example:


the hello-haste example:


Or something more complicated: the todo application, from todoMVC.com written in Haste and hplayground:


rename the programs if you modify them. Follow the instructions to download the HTML generated, that include the Javascript generated. At this time there are no permission controls so it is more or less like a wiki, but heroku from time to time will reset the application.

It is a free instance on heroku so expect delays and request timeouts when many people access to the application. I do not know what will happen.  Feedback welcome


My heroku instance is limited but It is easy to create your own instance in heroku. Follow the install instructions. At:





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