Update 2-initials.js

Author: Ayogit1

Sprint-1/1-key-exercises/2-initials.js

@@ -6,7 +6,7 @@ let lastName = "Johnson";
 // This should produce the string "CKJ", but you must not write the characters C, K, or J in the code of your solution.
 
 let initials = ``;
-initials = firstName.substring(0, 1) + middleName.substring(0, 1) + lastName.substring(0, 1)
+initials = firstName.slice(0, 1) + middleName.slice(0, 1) + lastName.slice(0, 1)
 console.log(initials)
 // https://www.google.com/search?q=get+first+character+of+string+mdn