TUGAS 5 APLIKASI JS SEDERHANA

Message

#1 Post by **iinindrawan** » 26 Apr 2026, 22:47

Tulis kode-kode berikut di dalam Visual Studio Code dan simpan ke dalam index.html:

<!DOCTYPE html>
<html lang="id">
<head>
<meta charset="UTF-8">
<title>Kalkulator Sederhana</title>

<style>
    body {
        margin: 0;
        font-family: Arial, sans-serif;
        background: #f4f6f9;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
    }

    .calculator {
        background: #222;
        padding: 20px;
        border-radius: 15px;
        width: 300px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

    .display {
        background: #000;
        color: #0f0;
        font-size: 2em;
        padding: 15px;
        border-radius: 10px;
        text-align: right;
        margin-bottom: 15px;
        overflow-x: auto;
    }

    .buttons {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
    }

    button {
        padding: 15px;
        font-size: 1.2em;
        border: none;
        border-radius: 10px;
        cursor: pointer;
    }

    .operator {
        background: orange;
        color: white;
    }

    .equal {
        background: green;
        color: white;
        grid-column: span 2;
    }

    .clear {
        background: red;
        color: white;
    }

    .del {
        background: gray;
        color: white;
    }
</style>

</head>
<body>

<div class="calculator">
    <div id="display" class="display">0</div>

    <div class="buttons">
        <button class="clear" onclick="clearDisplay()">C</button>
        <button class="del" onclick="deleteLast()">DEL</button>
        <button class="operator" onclick="append('/')">/</button>
        <button class="operator" onclick="append('*')">*</button>

        <button onclick="append('7')">7</button>
        <button onclick="append('8')">8</button>
        <button onclick="append('9')">9</button>
        <button class="operator" onclick="append('-')">-</button>

        <button onclick="append('4')">4</button>
        <button onclick="append('5')">5</button>
        <button onclick="append('6')">6</button>
        <button class="operator" onclick="append('+')">+</button>

        <button onclick="append('1')">1</button>
        <button onclick="append('2')">2</button>
        <button onclick="append('3')">3</button>

        <button onclick="append('0')">0</button>
        <button onclick="append('.')">.</button>
        <button class="equal" onclick="calculate()">=</button>
    </div>
</div>

<script>
    let display = document.getElementById("display");

    function append(value) {
        if (display.innerText === "0") {
            display.innerText = value;
        } else {
            display.innerText += value;
        }
    }

    function clearDisplay() {
        display.innerText = "0";
    }

    function deleteLast() {
        display.innerText = display.innerText.slice(0, -1);
        if (display.innerText === "") {
            display.innerText = "0";
        }
    }

    function calculate() {
        try {
            display.innerText = eval(display.innerText);
        } catch {
            display.innerText = "Error";
        }
    }
</script>

</body>
</html>