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Opa is a revolutionary language for web development.

This project will collect a series of simple, self-contained HOWTOs illustrating how to accomplish certain tasks in Opa. Every HOWTO will consist of just a single Opa file, with extensive comments, including HINTs and EXERCISEs.

List of HOWTOs

As of today the HOWTOs include:

  • select.opa: How to properly use HTML's SELECT in Opa? (requested by Nathan Frund). Run!.

Request a HOWTO

If you have a question that could be a basis for a good HOWTO don't hesitate to contact me at and suggest it for inclusion here.