My apologies! I had to rip out js-bidirectional-input out, and didn't update the documentation to reflect that. The documentation linked from the "API" link there is unfortunately stale, and I haven't had the time to update it. (Most of my time right now is dedicated to a new version of the evaluator, discussed at the bottom of this post.)

The Wescheme environment is meant to pair with the curriculum of the Bootstrap project (http://www.bootstrapworld.org/)

Here are some examples that highlight the features in WeScheme. Each includes both a runner and a live editor link to the source code.

A simple game:

    http://www.wescheme.org/view?publicId=messy-humor-truck-adopt-outdo

A sierpenski triangle program:

    http://www.wescheme.org/view?publicId=pasty-brawl-frank-vomit-would

A more substantial demo of the image libraries:

    http://www.wescheme.org/view?publicId=haste-foggy-grief-hatch-gloom

A simple 1-tick-per-section counter that resets when you press the button:

    http://www.wescheme.org/view?publicId=queer-decay-slush-speck-stage

I'm in the middle of a rewrite of the underlying evaluator and libraries during this summer (http://hashcollision.org/whalesong), and hope to deliver in the next few weeks so that people can play with it.

It's not you, I get the same error.