[Solved] How do I make this change method, so I get the bills for that given amount [duplicate]

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Your code checks the smaller bills before it checks the larger bills, which is clearly wrong: you want to have as many $1000 bills as possible before you resort to using $1 bills. So, you can reverse your bills array, or just sort it so it’s reversed:

function change(amount) {
    const bills = [1000, 500, 200, 100, 50, 20, 10, 5, 2, 1];
    // alternatively, to sort it
    // bills.sort((a, b) => b - a);
    const result = [];
    for (const bill of bills) {
        const billCount = Math.floor(amount / bill);
        amount = amount % bill;
        result.push(...new Array(billCount).fill(bill));
    }
    return result;
}

solved How do I make this change method, so I get the bills for that given amount [duplicate]