let cards = require('../cards.js');

let deck = cards.getDeck();
console.log(deck);

for (let i = 0; i < 50; i++) {
  let card = deck[0];
  deck.splice(0, 1);
  deck.push(cards.exchangeCard(card));
  console.log(deck);
}

@@ -1,17 +1,23 @@
 let 
-cards
+CardManager
  = requi
@@ -31,13 +31,57 @@
 card
-s.js'
+-manager.js');%0Alet cardManager = new CardManager(
 );%0A%0A
@@ -95,17 +95,23 @@
 k = card
-s
+Manager
 .getDeck
@@ -224,17 +224,23 @@
 ush(card
-s
+Manager
 .exchang

Fix cards_test.js