Canvas2DFlyer is a project mainly written in JavaScript, based on the GPL-3.0 license.
Simple example of 2D space flyer game. Check Wiki page for more information and click the link to see it in the action.
Simple HTML5 Canvas game tutorial
This tutorial explains how to draw graphics on the Canvas, how to calculate movements based on the user input and how to construct a basic game loop.
Check https://github.com/pepez/Canvas2DFlyer/wiki/Walkthrough-of-the-code for more details.
Petteri Hietavirta