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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Silicon Bank</title>
<link
rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"
integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh"
crossorigin="anonymous"
/>
<link rel="preconnect" href="https://fonts.gstatic.com" />
<link
href="https://fonts.googleapis.com/css2?family=Rubik:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap"
rel="stylesheet"
/>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<!-- Login Area -->
<div id="login-area" class="container">
<h1 class="bank-title text-center">Welcome to Silicon Bank</h1>
<div class="submit-area">
<h4>Login</h4>
<input type="text" class="form-control" placeholder="Email" />
<br />
<input type="password" class="form-control" placeholder="Password" />
<br />
<button id="login" class="btn btn-success">Enter</button>
</div>
</div>
<!-- Transaction Area - TA -->
<!-- TA - Deposit, withdraw and balance view box -->
<div id="transaction-area" class="container">
<div class="row">
<div class="col-md-4">
<div class="deposit status">
<h5>Deposit</h5>
<h2>$ <span id="currentDeposit">00</span></h2>
</div>
</div>
<div class="col-md-4">
<div class="withdraw status">
<h5>Withdraw</h5>
<h2>$ <span id="currentWithdraw">00</span></h2>
</div>
</div>
<div class="col-md-4">
<div class="balance status">
<h5>Balance</h5>
<h2>$ <span id="currentBalance">1240</span></h2>
</div>
</div>
</div>
<!-- TA - Deposit and withdraw input box -->
<div class="row">
<!-- TA - Withdraw input box-->
<div class="col-md 6">
<div class="submit-area">
<h4>Deposit</h4>
<input
id="depositAmount"
type="text"
class="form-control"
placeholder="$ amount you want to deposit"
/>
<br />
<button id="addDeposit" class="btn btn-success">Deposit</button>
</div>
</div>
<!-- TA - Deposit input box-->
<div class="col-md 6">
<div class="submit-area">
<h4>Withdraw</h4>
<input
id="withdrawAmount"
type="text"
class="form-control"
placeholder="$ amount you want to withdraw"
/>
<br />
<button id="addWithdraw" class="btn btn-success">Withdraw</button>
</div>
</div>
</div>
</div>
<script>
//login button event handler
const loginBtn = document.getElementById("login");
loginBtn.addEventListener("click", function () {
const loginArea = document.getElementById("login-area");
loginArea.style.display = "none";
const transactionArea = document.getElementById("transaction-area");
transactionArea.style.display = "block";
});
//deposit button event handler
const depositBtn = document.getElementById("addDeposit");
depositBtn.addEventListener("click", function () {
const depositNumber = getInputNumber("depositAmount");
if (depositNumber < 0) {
alert("Deposit Number cannot be negative");
} else {
updateSpanText("currentDeposit", depositNumber);
updateSpanText("currentBalance", depositNumber);
document.getElementById("depositAmount").value = "";
}
});
// withdraw button event handler
const withdrawBtn = document.getElementById("addWithdraw");
withdrawBtn.addEventListener("click", function () {
const withdrawNumber = getInputNumber("withdrawAmount");
updateSpanText("currentWithdraw", withdrawNumber);
updateSpanText("currentBalance", -1 * withdrawNumber);
document.getElementById("withdrawAmount").value = " ";
});
function getInputNumber(id) {
const Amount = document.getElementById(id).value;
const amountNumber = parseFloat(Amount);
return amountNumber;
}
function updateSpanText(id, addedNumber) {
const current = document.getElementById(id).innerText;
const currentNumber = parseFloat(current);
const totalAmount = addedNumber + currentNumber;
// total amount
document.getElementById(id).innerText = totalAmount; // update total amount on deposit/ withdraw/ balance
}
</script>
</body>
</html>