Tell us what’s happening:
Change-due element is showing the expected output in accordance with the tests but the tests are still failing. I have manually checked the output of each test by entering the values into the price and cash fields and the output is perfectly in accordance withe tests . Why my tests are failing?
Your code so far
<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Cash Register</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 20px;
}
.container {
max-width: 600px;
margin: 0 auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 10px;
}
input, button {
padding: 10px;
margin: 5px 0;
width: 100%;
}
/* #change-due {
margin-top: 20px;
font-weight: bold;
} */
</style>
</head>
<body>
<div class="container">
<h1>Cash Register</h1>
<label for="price">Price of Item:</label>
<input type="number" id="price" step="0.01" placeholder="Enter price">
<label for="cash">Cash Provided:</label>
<input type="number" id="cash" step="0.01" placeholder="Enter cash provided">
<button id="purchase-btn">Purchase</button>
<p id="change-due"></p>
</div>
<script src="script.js"></script>
</body>
</html>
/* file: script.js */
// Predefined variables for testing
let price = 0;
let cid = [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]];
// Currency unit values
const currencyUnit = {
"PENNY": 0.01,
"NICKEL": 0.05,
"DIME": 0.10,
"QUARTER": 0.25,
"ONE": 1.00,
"FIVE": 5.00,
"TEN": 10.00,
"TWENTY": 20.00,
"ONE HUNDRED": 100.00
};
document.getElementById('purchase-btn').addEventListener('click', function() {
price = parseFloat(document.getElementById('price').value);
let cash = parseFloat(document.getElementById('cash').value);
if (isNaN(price) || isNaN(cash)) {
alert("Please enter valid numbers for price and cash.");
return;
}
if (cash < price) {
alert("Customer does not have enough money to purchase the item");
return;
}
if (cash === price) {
document.getElementById('change-due').innerHTML = "No change due - customer paid with exact cash";
return;
}
let changeDue = cash - price;
let changeArray = getChange(changeDue, cid);
if (changeArray.status === "INSUFFICIENT_FUNDS") {
document.getElementById('change-due').innerHTML = "Status: INSUFFICIENT_FUNDS";
} else if (changeArray.status === "CLOSED") {
document.getElementById('change-due').innerHTML = `Status: CLOSED ${formatChangeArray(changeArray.change)}`;
} else {
document.getElementById('change-due').innerHTML = `Status: OPEN ${formatChangeArray(changeArray.change)}`;
}
});
function getTotalCid(cid) {
return cid.reduce((acc, curr) => acc + curr[1], 0);
}
function getChange(changeDue, cid) {
let changeArray = [];
let totalCid = getTotalCid(cid);
if (totalCid < changeDue) {
return { status: "INSUFFICIENT_FUNDS", change: [] };
}
if (totalCid === changeDue) {
return { status: "CLOSED", change: cid };
}
for (let i = cid.length - 1; i >= 0; i--) {
let currencyName = cid[i][0];
let currencyTotal = cid[i][1];
let currencyValue = currencyUnit[currencyName];
let amountNeeded = 0;
while (changeDue >= currencyValue && currencyTotal > 0) {
changeDue -= currencyValue;
currencyTotal -= currencyValue;
amountNeeded += currencyValue;
changeDue = Math.round(changeDue * 100) / 100;
}
if (amountNeeded > 0) {
changeArray.push([currencyName, amountNeeded]);
}
}
if (changeDue > 0) {
return { status: "INSUFFICIENT_FUNDS", change: [] };
}
return { status: "OPEN", change: changeArray };
}
function formatChangeArray(changeArray) {
if (changeArray.length === 0) {
return "";
}
return changeArray.map(item => `${item[0]}: $${formatAmount(item[1])}`).join(" ");
}
function formatAmount(amount) {
if (amount % 1 === 0) {
return amount.toString();
} else if (amount * 10 % 1 === 0) {
return amount.toFixed(1);
} else {
return amount.toFixed(2);
}
}
/* file: styles.css */
Your browser information:
User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15
Challenge Information:
Build a Cash Register Project - Build a Cash Register
