JavaScript/Cal.html at master · kunalgarg081/JavaScript · 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>
</head>
<body>

    <input type="text" id="tx1">
    <input type="text" id="tx2">
    <button onclick="add()"><h1>+</h1></button>
    <button onclick="sub()"><h1>-</h1></button>
    <button onclick="mul()"><h1>*</h1></button>
    <button onmouseover="div()"><h1>/</h1></button>
    <h1 id="out"></h1>


    <script>

        function add(){
            let a =parseInt(document.getElementById('tx1').value)
            let b =parseInt(document.getElementById('tx2').value)
            document.getElementById('out').innerHTML = a+b
        }
        function sub(){
            let a =parseInt(document.getElementById('tx1').value)
            let b =parseInt(document.getElementById('tx2').value)
            document.getElementById('out').innerHTML = a-b
        }
         function mul(){
            let a =parseInt(document.getElementById('tx1').value)
            let b =parseInt(document.getElementById('tx2').value)
            document.getElementById('out').innerHTML = a*b
        }
        function div(){
            let a =parseInt(document.getElementById('tx1').value)
            let b =parseInt(document.getElementById('tx2').value)
            document.getElementById('out').innerHTML = a/b
        }

    </script>
</body>
</html>