How to find out element position in slice?

Question

How does one determine the position of an element present in slice?

I need something like the following:

type intSlice []int

func (slice intSlice) p         


        

Answer 1

func index(slice []string, item string) int {
    for i, _ := range slice {
        if slice[i] == item {
            return i
        }
    }
    return -1
}