Functions and closures

It's time to talk about functions and closures, so sit tight and enjoy the journey. Functions are considered one of the key building blocks in any programming language, as they allow you to define actions in your code.

Let's discuss the basics of functions.

Functions – the basics

Here is how you write a function in Go:

func main(){
//do something
}

The main function is almost always the first function that gets executed in your Go program. The main function needs to live inside the main package, since main is the entry point package for your Go program.

Here is what a function with arguments would look like:

func add(a int, b int){
//a+b
}

Since the a and b arguments from the preceding code...