The words function and method are used almost interchangeably, but there are subtle differences in their implementation and usage when used in Golang. Let’s see what the difference is and how its used.
Function
Functions accept a set of input parameters, perform some operations on the input and produce an output with a specific return type. Functions are independent that is they are not attached to any user defined type.
Syntax:
There cannot exist two different functions with the same name in the same package.
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The above code throws an error : Area redeclared in this block
Method
A method is effectively a function attached to a user defined type like a struct. This user defined type is called a receiver.
Syntax:
There can exist different methods with the same name with a different receiver.
