Go by Example: Recursion

Go supports recursive functions. Here’s a classic factorial example.
	package main
	import "fmt"
This `fact` function calls itself until it reaches the base case of `fact(0)`.	func fact(n int) int { if n == 0 { return 1 } return n * fact(n-1) }
	func main() { fmt.Println(fact(7)) }

$ go run recursion.go 
5040

Next example: Pointers.