Implement character counting logic in countChar function

Author: MohammedNaru

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

@@ -1,5 +1,14 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  let count = 0;
+
+  for (let char of stringOfCharacters) {
+    if (char === findCharacter) {
+      count++;
+    }
+  }
+
+  return count;
 }
 
 module.exports = countChar;
+