Hello, fellow coder! Brace yourself, for today we will explore Go programming with a focus on methods
. Methods are akin to magic spells that allow us to perform various actions on custom data types. We'll delve into method definitions, method declarations, understand the function of receiver functions, and see them in practice. Exciting, right? Let's jump right in!
In Go, a method is a function attached to a specific type. Similar to how spells enable wizards to perform magical activities, methods allow us to conduct different operations on specific data types. Consider a racecar — it can accelerate, turn, brake, etc. A Go racecar
type could have methods to define these actions.
Understanding the difference between methods and functions is vital. A function
is a standalone entity, while a method
always belongs to a type. Thus, a method is a special kind of function attached to a specific type.
Declaring a method in Go follows this protocol:
Let's examine a Circle
type:
In this example, we've declared a method for the type, which calculates the area when called in a instance.
