The reason those languages are more friendly towards small functions has nothing to do with pure functions/programs. You can use the same concepts in C/C++ or J

The reason those languages are more friendly towards small functions has nothing to do with pure functions/programs. You can use the same concepts in C/C++ or Java/C# just as easily, I've done it, it's not hard. What makes those languages more friendly towards smaller functions has to do with how easy it is to create a new function in those languages. Creating a function in C/C++ for instance, is a pain becouse of the boilerplate involved (header files...). In the OP's example, he's imposing named functions on himself when he doesn't actually need to. For some reason he also declares functions within the same scope that he calls it, which just makes it cluttered in my oppinion. He would probably be alot more happy with promises.