changed the variable for the ext part

Author: Mona-Eltantawy

Sprint-1/1-key-exercises/3-paths.js

@@ -16,9 +16,7 @@ console.log(`The base part of ${filePath} is ${base}`);
 
 // Create a variable to store the dir part of the filePath variable
 // Create a variable to store the ext part of the variable
+const lastDotIndex = filePath.lastIndexOf(".");
+const ext = filePath.slice(lastDotIndex); 
 
-const dir = filePath .slice (0,lastSlashIndex);
-console.log(`The dir part of ${filePath} is ${dir}`);
-const ext = filePath.slice (lastSlashIndex + 1);
-console.log(`The ext part of ${filePath} is ${ext}`);
-// https://www.google.com/search?q=slice+mdn
+// https://www.google.com/search?q=slice+mdn