update the code by declaring new variable and function producing strings "CKJ"

Author: Alaa-Tagi

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

@@ -5,7 +5,11 @@ let lastName = "Johnson";
 // Declare a variable called initials that stores the first character of each string.
 // 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 = ``;
+function getInitial(name) {
+  return name[0];
+}
 
-// https://www.google.com/search?q=get+first+character+of+string+mdn
+let initials =
+  getInitial(firstName) + getInitial(middleName) + getInitial(lastName);
+console.log(initials);