But the ones who learn, will become better programmers. Functional programming has already been proven out in the field, since the late '60s. In fact, there is

But the ones who learn, will become better programmers. Functional programming has already been proven out in the field, since the late '60s. In fact, there is a recent trend to more use of functional programming, just as in the 90s, OOP was all the rage. What is hard, is to use a purely functional language.