Preface

Some of us may be used to developing an application using the object orientation programming technique and don’t care about the functional programming technique. However, there are benefits to using functional programming. One of the benefits is that we will get a new perspective on our programming code since the function in functional programming is identical to a mathematical function. Because it's identical to a mathematical function, the function in functional programming contains no side-effects, which means that the function invocation will have no effect on other functions in the class. We will discuss more details about the benefits and other things related to functional programming in this book.