closedsource/binary.html at master · pikatchu/closedsource · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Mr Lee's lesson</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            text-align: center;
            margin: 50px;
        }
        input {
            padding: 10px;
            font-size: 18px;
            margin-bottom: 20px;
        }
        .output {
            font-size: 20px;
            font-weight: bold;
        }
    </style>
</head>
<body>
    <h2>Mr Lee's lesson</h2>
    <input type="number" id="decimalInput" placeholder="Enter a decimal number" oninput="convertNumber()">
    <div class="output" id="binaryOutput"></div>
    <div class="output" id="hexOutput"></div>

    <script>
        function convertNumber() {
            let decimal = document.getElementById("decimalInput").value;
            if (decimal === "") {
                document.getElementById("binaryOutput").innerText = "";
                document.getElementById("hexOutput").innerText = "";
                return;
            }
            let binary = parseInt(decimal, 10).toString(2);
            let hex = parseInt(decimal, 10).toString(16).toUpperCase();
            document.getElementById("binaryOutput").innerText = `Binary: ${binary}`;
            document.getElementById("hexOutput").innerText = `Hexadecimal: ${hex}`;
        }
    </script>
</body>
</html>