go/src/strings/compare.go

// Compare returns an integer comparing two strings lexicographically.
// The result will be 0 if a == b, -1 if a < b, and +1 if a > b.
//
// Use Compare when you need to perform a three-way comparison (with
// [slices.SortFunc], for example). It is usually clearer and always faster
// to use the built-in string comparison operators ==, <, >, and so on.
func Compare(a, b string) int { … }