card counting exercise

Author: marianadacunha

counting-cards-exercise.js

@@ -0,0 +1,37 @@
+// In the casino game Blackjack, a player can gain an advantage over the house by keeping track of the relative number of high and 
+// low cards remainin in the deck. This is called Card Counting. Having more high cards remaining in the deck favors the player. 
+// Each card is assigned a value according to the table below.  When the count is positive, the player should bet high. When the count 
+// is zero or negative, the player should bet low.
+
+// Let's write a card counting function. It will receive a 'card' parameter, which can be a number or a string, and increment or decrement 
+// the global 'count' variable according to the card's value. The function will then return a string with the current count and the string 
+// 'Bet' if the count is positive, or 'Hold' if the count is zero or negative. The current count and the player's decision ('Bet' or 'Hold') 
+// should be separated by a single space.
+
+var count = 0;
+
+function cc(card) {
+switch (card) {
+  case 2:
+  case 3:
+  case 4:
+  case 5:
+  case 6:
+    count++;
+    break;
+  case 10:
+  case "J":
+  case "Q":
+  case "K":
+  case "A":
+    count--;
+    break;
+}
+  if (count > 0) {
+    return count + " Bet";
+  } else {
+    return count + " Hold";
+  }
+}
+
+cc(2); cc(3); cc(7); cc('K'); cc('A');