Calculator
About this app
A simple calculator to perform arithmetic operations
Calculator Calculator + - * / Calculate
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Source
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Calculator</title>
<meta name="description" content="A simple calculator to perform arithmetic operations">
<meta name="keywords" content="calculator, arithmetic, operations">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<script type="text/javascript">
try {
// App Javascript Goes Here. Place your entire script content inside the try block for error handling.
function calculate() {
var num1 = parseFloat($("#num1").val());
var num2 = parseFloat($("#num2").val());
var operator = $("#operator").val();
var result = 0;
switch (operator) {
case '+':
result = num1 + num2;
break;
case '-':
result = num1 - num2;
break;
case '*':
result = num1 * num2;
break;
case '/':
result = num1 / num2;
break;
}
$("#result").text("Result: " + result);
}
// This will run when the DOM is ready.
document.addEventListener("DOMContentLoaded", function() {
$("#calculate-btn").click(function() {
calculate();
});
});
} catch (error) {
// This will throw the error to the parent window.
throw error;
}
</script>
<style>
/* App CSS Goes Here */
body {
background-color: #f8f9fa;
font-family: 'Open Sans', sans-serif;
}
.calculator-container {
max-width: 400px;
margin: 0 auto;
padding: 20px;
background-color: #ffffff;
border-radius: 5px;
box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
.calculator-title {
text-align: center;
font-size: 24px;
font-weight: bold;
margin-bottom: 20px;
}
.form-group {
margin-bottom: 20px;
}
.form-control {
height: 40px;
}
.result {
text-align: center;
font-size: 18px;
font-weight: bold;
margin-top: 20px;
}
.btn-primary {
background-color: #007bff;
border-color: #007bff;
}
.btn-primary:hover {
background-color: #0069d9;
border-color: #0062cc;
}
</style>
</head>
<body>
<div id="main-container" class="container">
<div class="calculator-container">
<div class="calculator-title">Calculator</div>
<div class="form-group">
<input type="number" id="num1" class="form-control" placeholder="Enter number 1">
</div>
<div class="form-group">
<input type="number" id="num2" class="form-control" placeholder="Enter number 2">
</div>
<div class="form-group">
<select id="operator" class="form-control">
<option value="+">+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
</select>
</div>
<button id="calculate-btn" class="btn btn-primary btn-block">Calculate</button>
<div id="result" class="result"></div>
</div>
</div>
</body>
</html>
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