The online demonstration is running at JS-monads-stable. The code is at https://github.com/dschalk/JS-monads-stable.
###THIS PACKAGE IS NOT BEING MAINTAINED. IF YOU WANT TO USE THE MONADS DESCRIBED ONLINE AND AT THE GITHUB REPO, GO TO THE GITHUB REPO/client/src AND GET THE monad.js SCRIPT. PUT IT IN SCRIPT TAGS IN YOUR index.html FILE. THAT IS HOW I USE IT.