[paf31]

Very nice. It took me a while to realize that array literals aren't supported, but once I did that I was able to write concatMap and watch it being evaluated.

A couple of points:

- If there is a syntax error, the box just turns red. It would be nice to see what the issue is.

- You could probably make it clearer that it's possible to execute arbitrary expressions, by editing the map term, for example.

[janpaul123]

I've added error messages in https://github.com/stevekrouse/hs.js/commit/2ed274d4607a4c9d... and https://github.com/stevekrouse/hs.js/commit/812945939e14e337....

The (edit) and (clear) links are now always visible to encourage editing, per https://github.com/stevekrouse/hs.js/commit/e301961c03d92c58...

Thanks!!