A simple team exercise

Create a pocket object that can contain coins 💰 and trinkets 📿. The pocket allows users to buy() trinkets for 10 coins, and sell() trinkets for 8 coins. You can also return the number of coins() or trinkets().

You cannot have a negative number of coins or trinkets.

const pocket = PocketFactory({
    coins: 500,
    trinkets: 2
});

Purchase 5 trinkets:

pocket.buyTrinkets(5);

Inspect pocket after purchase transaction:

pocket.getPocketedTrinkets();   // 7
pocket.getPocketedCoins();      // 450

Sell a single trinket:

pocket.sellTrinkets();

Inspect transaction history:

let history = pocket.getTransactionHistory();
console.table(history);