JavaScript Algorithms and Data Structures Projects - Cash Register

JavaScript
1

Tell us what’s happening:

Please, can someone help me with this problem?

Your code so far

function checkCashRegister(price, cash, cid) {
  const DRAWER = {
    PENNY: 0.01,
    NICKEL: 0.05,
    DIME: 0.1,
    QUARTER: 0.25,
    ONE: 1,
    FIVE: 5,
    TEN: 10,
    TWENTY: 20,
    "ONE HUNDRED": 100
  };

  let change = cash - price;
  let drawer = cid.reduce((sum, [denomination, amount]) => {
    sum[denomination] = {
      denomination: denomination,
      amount: amount
    };
    return sum;
  }, {});

  for (let denomination in DRAWER) {
    while (change >= DRAWER[denomination] && drawer[denomination].amount > 0) {
      change -= DRAWER[denomination];
      drawer[denomination].amount--;
      change = Math.round(change * 100) / 100;
    }
  }

  if (change > 0) {
    return { status: "INSUFFICIENT_FUNDS", change: [] };
  }

  let drawerChange = [];
  for (let denomination in drawer) {
    if (drawer[denomination].amount > 0) {
      drawerChange.push([denomination, drawer[denomination].amount * DRAWER[denomination]]);
    }
  }

  if (drawerChange.reduce((sum, [denomination, amount]) => sum + amount, 0) === cid.reduce((sum, [denomination, amount]) => sum + amount, 0)) {
    return { status: "CLOSED", change: cid };
  }

  return { status: "OPEN", change: drawerChange };
}
checkCashRegister(19.5, 20, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]]);

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Challenge Information:

JavaScript Algorithms and Data Structures Projects - Cash Register

2

Which tests are failing? What debugging have you done so far?

3

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