It would be nice to have callBind (demethodify)

[kirilloid]

Some built-in methods are rather useful, but they can be used only as methods and cannot be used as simple function with one argument for map etc.
Function.call.bind can help us, but this is a bit clumsy.
_.callBind = function (fn) { return fn.call.bind(fn); }

Also this could be useful for "uncurrying" 1 argument, like e.g.
someString.replace(/&#(\d+);/g, _.callBind(String.fromCharCode));

[DrBoolean]

Thanks kirilloid,

That's a great addition. I'll try to get that in today with some tests to match