使用JavaScript限制日期范围 [英] Date range restriction with JavaScript

问题描述

有两个类型为text的输入字段，用于以mm / dd / yyy格式写入开始日期和结束日期。我需要一个JavaScript函数来检查这些输入日期之间的日期范围间隔是否超过14天。最长日期应为当前日期。是否有插件或快速解决方案？我尝试使用jQuery UI datepicker可以正常工作，但我有一个自定义的GetElementByClassName函数与jQuery冲突。

There are two input fields of type text to write a start date and end date in format mm/dd/yyy. I need a JavaScript function to check that the date range interval between those entered dates does not exceed 14 days. And the maximum date should be the current date. Is there a plugin or a fast solution for this? I tried to use the jQuery UI datepicker which would work fine, but I have a custom GetElementByClassName function which conflicts with jQuery.

谢谢。

推荐答案

以下片段应该会给你一些想法。

The following snippets should give you some ideas.

<script>
    var date1 = '01/14/2011';
    var date2 = '01/25/2011';

    // calculate the number of days between date1 and date2
    var daysBetween = new Date(date2).getTime() - new Date(date1).getTime();
    alert('days between = ' + daysBetween / 86400000);

    // check date3 against current date
    var now = new Date();
    var date3 = new Date('04/20/2011');
    if (date3 < now)
      alert('date3 is less than current date');

</script>

所以要组合成一个函数，你可以这样做：

So to combine into a function, you could do something like this:

<script>
    function checkDates(date1, date2) {
        // calculate the number of days between date1 and date2
        var daysBetween = (new Date(date2).getTime() - new Date(date1).getTime()) / 86400000;

        if (daysBetween > 14)
          return false;

        var now = new Date();
        if (date2 < now)
          return false;

        return true;

    }

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