Initially, I was a bit sceptic when generics where introduced in Golang, but I'm slowly starting to love them.
Recently, I need to filter a slice and remove all duplicates. With generics, this is a breeze:
1func Unique[T comparable](s []T) []T {
2 inResult := make(map[T]bool)
3 var result []T
4 for _, str := range s {
5 if _, ok := inResult[str]; !ok {
6 inResult[str] = true
7 result = append(result, str)
8 }
9 }
10 return result
11}
This is much easier than having to create the same function for each type you want to support.
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