检查html日期是否为>现在

Check if html Date is > NOW

本文关键字：gt 现在 html 日期是否检查更新时间：2024-06-23

如果日期大于今天，如何检查日期？如果日期大于今天，我希望它不要提交？

<html>
<head>

    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
function checkDate() {
            var EnteredDate = $("#since").val(); // For JQuery
            var month = EnteredDate.substring(0, 2);
            var date = EnteredDate.substring(3, 5);
            var year = EnteredDate.substring(6, 10);
            var myDate = new Date(year, date-1, month);
            var today = new Date();
            if (myDate > today) {
                alert("Entered date is greater than today's date ");
            }
        }
</script>
</head>
<body>      

        <form  action="">

            <ul>
                <li>
                    <label>Member Since </label>
            <input id = "since" name="since" size="2" maxlength="6" value="" type="date" required/>
                </li>
                <li>
                    <input type="Submit" name="Submit" id="btsubmit" value="Submit" onclick="checkDate();"/>
                </li>
            </ul>
        </form>


</body>
</html>

更新

尝试@Gaurav Mahindra的答案，EnteredDate.substring（X，X）略有变化；由于html的input type="date"属性格式为mm-dd-yyyy它不起作用，为什么？

这对我有用。希望它能帮助你：-

<html>
    <head>
        <title>Date Check</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
        <script type="text/javascript">
            function checkDate() {
            //var EnteredDate = document.getElementById("txtdate").value; //for javascript
            var EnteredDate = $("#txtdate").val(); // For JQuery
            var date = EnteredDate.substring(0, 2);
            var month = EnteredDate.substring(3, 5);
            var year = EnteredDate.substring(6, 10);
            var myDate = new Date(year, month-1, date);
            var today = new Date();
            if (myDate > today) {
                alert("Entered date is greater than today's date ");
            }
        }
        </script>
    </head>
    <body>
        Enter Date in (dd-mm-yyyy format) : <br/>
        <input type="text" id="txtdate" name="txtdate"/>
        <input value="SUBMIT"  type="submit" id="btnsubmit" onclick="checkDate();"/>
    </body>
</html>