003: Pointers or !Pointers, stack, and heap

We go over what are pointers and when to use or not use them. For instance, this is probably not a good use for pointers.

func main() {
  var i int = 10
  abc(&i)
}

func abc(i *int) {
  *i = 15
}

In my opinion any dereferencing is probably bad. Better way:

func main() {
  var i int = 10
  i = abc(i)
}

func abc(i int) int {
  return 15
}

I also try to give some basics info regarding the stack and heap and why pointers might not be seen as an optimization.

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