Defer statements delay the execution of the function or method or an anonymous method until the nearby functions returns. In other words, defer function or method call arguments evaluate instantly, but they don't execute until the nearby functions returns.

In the case of multiple defer calls in a method, the last defer executes first. Defer uses a stack, so first in, last out.

func main(){

  for i:=0;i<10;i++{
    defer fmt.Println(i)
  }
  fmt.Println("Byee....")
}

Output

Byee....
9
8
7
6
5
4
3
2
1
0

Process finished with the exit code 0