Summary

In this chapter, we saw how functions are defined in Julia and how to play around with function arguments. We covered different types of argument passing methods, such as variable arguments, single arguments, and even no arguments. Later on in the chapter, we discussed how multiple dispatch makes Julia one of the best languages available in the programming world because of the speed boost it provides. Interestingly, we focused on a topic named recursion, which, although not specific to functions, was covered just to give a brief overview of what recursive functions are and how recursion is done in Julia. And, lastly, we covered some of the most commonly used built-in functions provided by Julia's rich library.

Now that we have a solid foundation of what functions are and how they empower a fellow Julia programmer, we shall head over to types, a very interesting and important topic, wherein we will talk in detail about types to help us understand what they are and how to create one...