[jberryman]

Have you used jQuery? The way that selectors and method chaining works has a monadic flavor which is very convenient. In the alternate reality where haskell is running in your browser, if you were creating jQuery from scratch you would recognize that the thing you were making was monadic, you would make use of the large number of useful functions that fall out from Monad here: http://hackage.haskell.org/package/base-4.8.1.0/docs/Control..., and you would also recognize that much of what you needed in your jQuery API is already provided by those functions, so no need to re-implement things in an ad hoc way and force your users to learn new useless things. You might even find that what you're trying to create is a mashup, or "stack", of two or three different monadic things that have already been defined. You'd know that because your new jQuery structure obeys a couple simple rules that it is well-behaved and reasonable in the presence of those functions (and others that don't exist yet), and you may even notice some optimizations you can confidently make.