webd/Calculator.html at master · khushijindal/webd · GitHub

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<html>
    <script type="application/javascript">
    function putt(dgt) {
        document.getElementById("txt").value += dgt;
    }

    function equate() {
        var res = eval(document.getElementById("txt").value);
        document.getElementById("txt").value = res;
    }
</script>
<style>
    .tbl
    {
        border: 1px black solid;
        padding: 20px;
    }
    input[type="button"]
    {
        padding:10px;
    }
    </style>

<head>
    <title>Calculator</title>
</head>

<body>
    <form>
        <table class="tbl">
            <tr>
                <td>
                    <input type="text" id="txt">
                    <input type="reset" value="C"></td>
            </tr>
            <tr>
                <td align="center">
                    <input type="button" value="1" onclick="putt('1');">
                    <input type="button" value="2" onclick="putt('2');">
                    <input type="button" value="3" onclick="putt('3');">
                    <input type="button" value="+" onclick="putt('+');">
                </td>
            </tr>
            <tr>
                <td align="center">
                    <input type="button" value="4" onclick="putt('4');">
                    <input type="button" value="5" onclick="putt('5');">
                    <input type="button" value="6" onclick="putt('6');">
                    <input type="button" value="-" onclick="putt('-');">
                </td>
            </tr>
            <tr>
                <td align="center">
                    <input type="button" value="7" onclick="putt('7');">
                    <input type="button" value="8" onclick="putt('8');">
                    <input type="button" value="9" onclick="putt('9');">
                    <input type="button" value="*" onclick="putt('*');">
                </td>
            </tr>
            <tr>
                <td align="center">
                    <input type="button" value="0" onclick="putt('0');">
                    <input type="button" value="." onclick="putt('.');">
                    <input type="button" value="=" onclick="equate();">
                    <input type="button" value="/" onclick="putt('/');">
                </td>
            </tr>

        </table>
    </form>
</body>


</html>