Kalkulator Sederhana Interaktif
About this app
Sebuah kalkulator sederhana dan interaktif yang mendukung penjumlahan, pengurangan, perkalian, dan pembagian.
Kalkulator Sederhana Interaktif Kalkulator Sederhana 7 8 9 / 4 5 6 * 1 2 3 - 0 C = +
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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>Kalkulator Sederhana Interaktif</title>
<meta name="description" content="Sebuah kalkulator sederhana dan interaktif yang mendukung penjumlahan, pengurangan, perkalian, dan pembagian.">
<meta name="keywords" content="kalkulator, matematika, interaktif, penjumlahan, pengurangan, perkalian, pembagian">
<!-- Libraries -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.min.js" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.6.0/css/fontawesome.min.css" crossorigin="anonymous">
<script type="text/javascript">
try {
document.addEventListener("DOMContentLoaded", function() {
let currentInput = "";
let operation = null;
let previousInput = "";
const outputScreen = document.getElementById("output");
const updateOutput = () => {
outputScreen.value = currentInput || "0";
};
const clearAll = () => {
currentInput = "";
previousInput = "";
operation = null;
updateOutput();
};
const appendNumber = (number) => {
if (currentInput.length < 10) {
currentInput += number;
updateOutput();
}
};
const selectOperation = (op) => {
if (currentInput !== "") {
if (previousInput !== "") {
calculate();
}
operation = op;
previousInput = currentInput;
currentInput = "";
}
};
const calculate = () => {
let result;
const prev = parseFloat(previousInput);
const curr = parseFloat(currentInput);
if (isNaN(prev) || isNaN(curr)) return;
switch (operation) {
case "+":
result = prev + curr;
break;
case "-":
result = prev - curr;
break;
case "*":
result = prev * curr;
break;
case "/":
result = prev / curr;
break;
default:
return;
}
currentInput = result.toString();
operation = null;
previousInput = "";
updateOutput();
};
document.querySelectorAll(".number").forEach(button => {
button.addEventListener("click", () => {
appendNumber(button.textContent);
});
});
document.querySelectorAll(".operator").forEach(button => {
button.addEventListener("click", () => {
selectOperation(button.textContent);
});
});
document.getElementById("equals").addEventListener("click", calculate);
document.getElementById("clear").addEventListener("click", clearAll);
});
} catch (error) {
throw error;
}
</script>
<style>
body {
background: linear-gradient(to right, #ff7e5f, #feb47b);
color: white;
}
#main-container {
margin-top: 100px;
text-align: center;
}
#output {
width: 100%;
height: 60px;
font-size: 2rem;
text-align: right;
padding: 10px;
border: none;
border-radius: 10px;
}
.button {
font-size: 1.5rem;
padding: 20px;
margin: 10px;
border: none;
border-radius: 10px;
background-color: coral;
cursor: pointer;
transition: background-color 0.3s;
}
.button:hover {
background-color: orange;
}
h1 {
margin-bottom: 30px;
}
</style>
</head>
<body>
<div id="main-container" class="container">
<h1>Kalkulator Sederhana</h1>
<input type="text" id="output" disabled />
<div>
<button class="button number">7</button>
<button class="button number">8</button>
<button class="button number">9</button>
<button class="button operator">/</button>
</div>
<div>
<button class="button number">4</button>
<button class="button number">5</button>
<button class="button number">6</button>
<button class="button operator">*</button>
</div>
<div>
<button class="button number">1</button>
<button class="button number">2</button>
<button class="button number">3</button>
<button class="button operator">-</button>
</div>
<div>
<button class="button number">0</button>
<button class="button" id="clear">C</button>
<button class="button" id="equals">=</button>
<button class="button operator">+</button>
</div>
</div>
</body>
</html>
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