Calculator-using-HTML-CSS-JS/calculator.html at main · Siddh2024/Calculator-using-HTML-CSS-JS · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Calculator</title>
    <link rel="stylesheet" href="calculator.css">
</head>
<body>
    <div id="calculator">
        <input type="text" id="display" readonly>
    <div id="button-con">
        <button class="button" onclick="currentvalue = ''
        document.querySelector('#display').value = currentvalue;">C</button>

        <button class="button" onclick="currentvalue = currentvalue + '1'
        document.querySelector('#display').value = currentvalue;">1</button>

        <button class="button" onclick="currentvalue = currentvalue + '2'
        document.querySelector('#display').value = currentvalue;">2</button>

        <button class="button" onclick="currentvalue = currentvalue + '+'
        document.querySelector('#display').value = currentvalue;">+</button>

        <button class="button" onclick="currentvalue = currentvalue + '3'
        document.querySelector('#display').value = currentvalue;">3</button>

        <button class="button" onclick="currentvalue = currentvalue + '4'
        document.querySelector('#display').value = currentvalue;">4</button>

        <button class="button" onclick="currentvalue = currentvalue + '-'
        document.querySelector('#display').value = currentvalue;">-</button>

        <button class="button" onclick="currentvalue = currentvalue + '5'
        document.querySelector('#display').value = currentvalue;">5</button>

        <button class="button" onclick="currentvalue = currentvalue + '6'
        document.querySelector('#display').value = currentvalue;">6</button>

        <button class="button" onclick="currentvalue = currentvalue + '*'
        document.querySelector('#display').value = currentvalue;">*</button>

        <button class="button" onclick="currentvalue = currentvalue + '7'
        document.querySelector('#display').value = currentvalue;">7</button>

        <button class="button" onclick="currentvalue = currentvalue + '8'
        document.querySelector('#display').value = currentvalue;">8</button>

        <button class="button" onclick="currentvalue = currentvalue + '/'
        document.querySelector('#display').value = currentvalue;">/</button>

        <button class="button" onclick="currentvalue = currentvalue + '9'
        document.querySelector('#display').value = currentvalue;">9</button>

        <button class="button" onclick="currentvalue = currentvalue + '0'
        document.querySelector('#display').value = currentvalue;">0</button>

        <button class="button" onclick=" currentvalue = eval(currentvalue)
         document.querySelector('#display').value = currentvalue;">=</button>

    </div>
    </div>
    <script>
        let currentvalue = '';
        document.querySelector('#display').value = currentvalue;
    </script>
</body>
</html>