javascript - 如何在 javascript/jquery 的日期选择器中禁用日历中的过去日期？

Question

我正在开发 website我想在其中禁用日历中过去的日期。

我用来制作日历的HTML和JQuery代码是:

$("#startdate_datepicker").datepicker({numberOfMonths:[1, 2]});
$("#enddate_datepicker").datepicker({numberOfMonths:[1, 2]});

<link href="https://cdn.bootcss.com/jqueryui/1.12.1/jquery-ui.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<div class="dates">
   <div class="start_date" style="width:50%;margin-right:3%;">
      <input readonly="readonly" class="form-control start_date  mb-4" type="text" placeholder="start date" id="startdate_datepicker">
   </div>
   <div class="end_date" style="width:50%;margin-left:3%;">
      <input readonly="readonly" class="form-control  end_date  mb-4" type="text" placeholder="end date" id="enddate_datepicker">
   </div>
</div>

问题陈述:

我想知道应该在上面的代码中进行哪些更改，以便在选择开始日期后，在选择结束日期时应禁用开始日期之前的日期。

Answer 1

您可以使用the option=beforeShowDay of JQuery UI ，然后自定义每天的样式，如下演示:

作为 beforeShowDay 的 JQuery UI 指南:

A function that takes a date as a parameter and must return an array with:

[0]: true/false indicating whether or not this date is selectable
[1]: a CSS class name to add to the date's cell or "" for the default presentation
[2]: an optional popup tooltip for this date

let startDateUI = $("#startdate_datepicker").datepicker({
  numberOfMonths:[1, 2],
  todayHighlight: true,
  beforeShowDay: function (calDate) {
      return calDate - new Date() < 0 ? [false, '', ''] : [true, '','']
  }
});
$("#enddate_datepicker").datepicker({
  numberOfMonths:[1, 2],
  todayHighlight: true,
  beforeShowDay: function (calDate) {
      let selectedStartDate = $( "#startdate_datepicker" ).datepicker( "getDate" )
      return calDate - selectedStartDate < 0 ? [false, 'disable-day', 'not available day!!!'] : [true, '','']
  }
});

.disable-day{
  background-color:red;
}

<link href="https://cdn.bootcss.com/jqueryui/1.12.1/jquery-ui.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
  <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<div class="dates">
   <div class="start_date" style="width:50%;margin-right:3%;">
      <input readonly="readonly" class="form-control start_date  mb-4" type="text" placeholder="start date" id="startdate_datepicker">
   </div>
   <div class="end_date" style="width:50%;margin-left:3%;">
      <input readonly="readonly" class="form-control  end_date  mb-4" type="text" placeholder="end date" id="enddate_datepicker">
   </div>
</div>