Build a Cash Register Project - Build a Cash Register

JavaScript
1

Tell us what’s happening:

“Status: INSUFFICIENT_FUNDS”: if cash-in-drawer is less than the change due, or if you cannot return the exact change.
“Status: CLOSED”: if cash-in-drawer is equal to the change due.
“Status: OPEN”: if cash-in-drawer is greater than the change due and you can return change, with the change due in coins and bills sorted in highest to lowest order. — give me an idea for condition

Your code so far

<!-- file: index.html -->


/* file: script.js */
const changeDue = document.getElementById("change-due");
const cash = document.getElementById("cash");
const purchaseBtn = document.getElementById("purchase-btn");

let price = 19.5;
let cid = [
  ['PENNY', 0.5],
  ['NICKEL', 0],
  ['DIME', 0],
  ['QUARTER', 0],
  ['ONE', 0],
  ['FIVE', 0],
  ['TEN', 0],
  ['TWENTY', 0],
  ['ONE HUNDRED', 0]
];

purchaseBtn.addEventListener("click", () => {
  const cashFloat = parseFloat(cash.value);
  if (cashFloat < price) {
    alert("Customer does not have enough money to purchase the item");
  } else if (cashFloat == price) {
    changeDue.innerHTML = `
    <p>No change due - customer paid with exact cash</p>
    `;
  } else {
    let remmaing = cashFloat - price;
    calculate(remmaing);
  }
});
const calculate = (leftMoney) => {
  let totalLeft = leftMoney;
  let cidMoney = [];
  let cidName = [];
  let drawerIndex = [];

  let cidAmount = [
  ['PENNY', 0.01],
  ['NICKEL', 0.05],
  ['DIME', 0.1],
  ['QUARTER', 0.25],
  ['ONE', 1],
  ['FIVE', 5],
  ['TEN', 10],
  ['TWENTY', 20],
  ['ONE HUNDRED', 100]
  ];
  for (let i = cidAmount.length - 1; i >= 0; i--) {
    if (leftMoney >= cidAmount[i][1]) {
      let remmaing;
      let needed = Math.floor(leftMoney / cidAmount[i][1]);
      let neededFinal = needed * cidAmount[i][1];
      if (neededFinal >= cid[i][1]) {
        remmaing = (leftMoney - cid[i][1]).toFixed(2);
        leftMoney = remmaing;
        if (cid[i][1] !== 0) {
          cidMoney.push(cid[i][1]);
          cidName.push(cid[i][0]);
          drawerIndex.push(i);
        }
      } else {
        remmaing = (leftMoney - neededFinal).toFixed(2);
        leftMoney = remmaing;
        if (neededFinal !== 0) {
          cidName.push(cid[i][0]);
          cidMoney.push(neededFinal);
          drawerIndex.push(i);
        }
      }
    }
  }

  let totalcid = cid.flat(1).filter(item => typeof item === "number").reduce((acc, el) => acc + el, 0).toFixed(2);
  
  changeFn(cidName, cidMoney, totalcid, totalLeft);
};

const changeFn = (name, money, totalcid, totalLeft) => {
   if (parseFloat(totalcid) === parseFloat(totalLeft) || price < cash.value) {
    changeDue.textContent = "Status: CLOSED";
  } else if (parseFloat(totalLeft) > 0) {
    changeDue.textContent = "Status: INSUFFICIENT_FUNDS";
  } else {
    changeDue.textContent = "Status: OPEN";
  }
  console.log(parseFloat(totalcid));
  console.log(parseFloat(totalLeft));
  for (let i = 0; i <= name.length - 1; i++) {
    changeDue.textContent += ` ${name[i]}: $${money[i]}`;
  }
};

/* file: styles.css */

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Challenge Information:

Build a Cash Register Project - Build a Cash Register

2

Can you say more about what debugging you have tried and how you’re stuck figuring out what’s happening?

3

I am not getting idea about condition, this statments are confusing me

4

this is an example of that situation

When price is 19.5, the value in the #cash element is 20, cid is [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]], and the #purchase-btn element is clicked, the value in the #change-due element should be "Status: OPEN QUARTER: $0.5"

you have money left in the drawer, so after transaction the register stay open