Operators are an essential part of the language. This section explains what they are and how they are used. It might seem that there is plenty of theory surrounding this subject, but do not worry. We need to adopt the theoretical part to use it in practical code examples later in the book.
5.1 Introduction
What is the operator? An operator is a language entity that performs operations on its arguments. One or more different symbols represent operators. To better understand the terminology, let us look at a simple mathematical expression: x + y. Here, + is an operator. It performs an ...
