diff --git a/02_Day_Data_types/string_methods/index_of.js b/02_Day_Data_types/string_methods/index_of.js
index 189154b..480db7c 100644
--- a/02_Day_Data_types/string_methods/index_of.js
+++ b/02_Day_Data_types/string_methods/index_of.js
@@ -1,6 +1,6 @@
 // indexOf(): Takes takes a substring and if the substring exists in a string it returns the first position of the substring if does not exist it returns -1
 
-// string.indexOf(substring)
+string.indexOf(substring)
 let string = '30 Days Of JavaScript'
 console.log(string.indexOf('D'))          // 3
 console.log(string.indexOf('Days'))       // 3