Implement dir extraction from filePath and log the result in 3-paths.js

Author: moses77-boop

Sprint-2/1-key-exercises/3-paths.js

@@ -17,7 +17,9 @@ 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 dir = ;
+const dir = filePath.slice(0, lastSlashIndex);
+console.log(`The dir part of ${filePath} is ${dir}`);
+
 const ext = ;
 
 // https://www.google.com/search?q=slice+mdn