Add function Without which return slice with slice all elements not i… (#142)

* Add function Without which return slice with slice all elements not in another

* feat(Without): inverse args and use variadic argment for excluding items

Co-authored-by: Samuel Berthe <dev@samuel-berthe.fr>

intersect.go

@@ -175,3 +175,14 @@ func Union[T comparable](list1 []T, list2 []T) []T {
 
 	return result
 }
+
+// Without returns slice excluding all given values.
+func Without[T comparable](collection []T, exclude ...T) []T {
+	result := make([]T, 0, len(collection))
+	for _, e := range collection {
+		if !Contains(exclude, e) {
+			result = append(result, e)
+		}
+	}
+	return result
+}