Why is this happening and how to do it right?

Question

go

I'm trying to figure it out. Faced with strange behavior: https://play.golang.org/p/7NXR0BeHlgj
It turns out that "i" is always by reference, and when we assign "d", then the next time "i" changes, "d" will always change as well? What is the correct way to select in this case? Break put after the assignment is the only thing that came up with -_- . But such a strange "internal" feeling that I'm doing it wrong

Answer 1

here is the fix
https://play.golang.org/p/TR38meeQAH7
or
https://play.golang.org/p/WdGTLqGaoAD
this happens because this is how range works, it copies the element from the array and overwrites the i variable on each iteration , so you need to either copy it (as in example 1), or pass it through a closure (as in 2 and in the case of goroutines).