feat: add WithoutBy example test

intersect_example_test.go

@@ -0,0 +1,34 @@
+package lo
+
+import (
+	"fmt"
+)
+
+func ExampleWithoutBy() {
+	type user struct {
+		id   int
+		name string
+	}
+	// Example usage
+	users := []user{
+		{id: 1, name: "Alice"},
+		{id: 2, name: "Bob"},
+		{id: 3, name: "Charlie"},
+	}
+
+	// Exclude users with IDs 2 and 3
+	excludedIDs := []int{2, 3}
+
+	// Extract function to get the user ID
+	extractID := func(user user) int {
+		return user.id
+	}
+
+	// Filtering users
+	filteredUsers := WithoutBy(users, extractID, excludedIDs...)
+
+	// Output the filtered users
+	fmt.Printf("%v\n", filteredUsers)
+	// Output:
+	// [{1 Alice}]
+}