updated the function to handle empty strings

Author: alexandru-pocovnicu

Sprint-3/2-practice-tdd/count.js

@@ -1,5 +1,8 @@
 function countChar(stringOfCharacters, findCharacter) {
   let char = 0;
+  if (stringOfCharacters === 0){
+    return 0
+  }
   for(let i = 0;i <= stringOfCharacters.length - findCharacter.length;i++){ 
     if ( findCharacter.length === 0 || stringOfCharacters === 0){
       return 0;