Find operations added

find.go

@@ -0,0 +1,32 @@
+package channel
+
+func FindFirst[T any](source <-chan T) *T {
+	for v := range source {
+		return &v
+	}
+	return nil
+}
+
+func FindFirstAndFlush[T any](source <-chan T) *T {
+	for v := range source {
+		Flush(source)
+		return &v
+	}
+	return nil
+}
+
+func FindLast[T any](source <-chan T) *T {
+	var last *T = new(T)
+	found := false
+
+	for v := range source {
+		*last = v
+		found = true
+	}
+
+	if !found {
+		return nil
+	}
+
+	return last
+}