more helper functions

of.go

@@ -0,0 +1,16 @@
+package slices
+
+func Of[T any](values ...T) []T {
+	return values
+}
+
+// OfMap returns a slice containing the return values of the unmapper function
+// applied to any key-value pair in m
+// The order is random
+func OfMap[K comparable, V, T any](m map[K]V, unmapper func(K, V) T) []T {
+	out := make([]T, 0, len(m))
+	for k, v := range m {
+		out = append(out, unmapper(k, v))
+	}
+	return out
+}