v0

utils/slice.go

@@ -0,0 +1,36 @@
+package utils
+
+import "fmt"
+
+func SliceIndexOf[T any](
+	s []T,
+	fn func(T) bool,
+) (int, error) {
+	for i, el := range s {
+		if fn(el) {
+			return i, nil
+		}
+	}
+
+	return -1, fmt.Errorf("failed to find a matching element")
+}
+
+func SliceContains[T comparable](s []T, el T) bool {
+	for _, element := range s {
+		if element == el {
+			return true
+		}
+	}
+
+	return false
+}
+
+func SliceContainsCustom[T comparable](s []T, fn func(el T) bool) bool {
+	for _, el := range s {
+		if fn(el) {
+			return true
+		}
+	}
+
+	return false
+}