Made string with first initial of all 3 strings

Author: MahirShah300

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

@@ -5,6 +5,9 @@ const 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.
 
-const initials = ``;
+let initials = ``;
+initials += firstName.charAt(0)
+initials += middleName.charAt(0)
+initials += lastName.charAt(0)
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn