diff --git a/.gitignore b/.gitignore
index 5d95f6c..23f0b15 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,7 @@
 just_code/**/*.txt
 temp/
 java/Main.java
-java/*.class
\ No newline at end of file
+java/*.class
+data_structure/*.json
+data_structure/*.class
+node_modules/
\ No newline at end of file