Implement getCardValue function with support for number, face, and ace cards; throw error for invalid cards

Author: HoussamLh

Sprint-3/2-mandatory-rewrite/3-get-card-value.js

@@ -1,5 +1,15 @@
 function getCardValue(card) {
-    // replace with your code from key-implement
-    return 11;
+  const rank = card.slice(0, -1); // All characters except the last one (suit)
+
+  if (!rank) throw new Error("Invalid card rank");
+
+  if (rank === "A") return 11;
+  if (["K", "Q", "J", "10"].includes(rank)) return 10;
+
+  const number = Number(rank);
+  if (number >= 2 && number <= 9) return number;
+
+  throw new Error("Invalid card rank");
 }
-module.exports = getCardValue;
+
+module.exports = getCardValue;