updating count.js file

Author: AbdennourHachemi

practice-tdd/count.js

@@ -1,3 +1,9 @@
 export function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  let count = 0;
+  for (const character of stringOfCharacters) {
+    if (character === findCharacter) {
+      count++;
+    }
+  }
+  return count;
 }