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javascript - 动态构造手风琴并触发它 - jQuery

问题描述

我有 3 个动作按钮

在此处输入图像描述

我已遵循此文档 https://getbootstrap.com/docs/4.3/components/collapse/

这是我的(i)按钮

<a data-device-mac="BCAEC5DA2D87" class="stats-modify-btn" title="Device Info" data-toggle="collapse" href="#info-BCAEC5DA2D87" role="button" aria-expanded="false" aria-controls="info-BCAEC5DA2D87">
    <i class="fa fa-info ml15"></i>
</a>

然后，我也有这个

$('.stats-modify-btn').click(function() {

    console.log($(this).attr("data-device-mac"));

    var deviceMac = $(this).attr("data-device-mac");
    var title = $(this).attr("title");

    var infoAccordion = `
    <div class="collapse row stats-device-table detail-slider" id="info-${device.device_mac}">
    <div class="col-sm-6" id="device_status_value">
    ${device.display_activity}
    </div>
    </div>
    `;

    if(title == "Device Info"){
        console.log('show Device Info');

        $('#tr-'+ deviceMac).append(infoAccordion).show();
    }

});

我不知道为什么手风琴没有触发。

是否尝试触发但实际的 DOM 还不存在？我如何确定？

标签： javascriptjquerycsstwitter-bootstrap

解决方案

您可以检查其中是否#tr-BCAEC5DA2D87有任何 div，即：collapse或没有，如果长度是0然后在其中附加新的 div。此外，您需要使用此条件，以便在您的 div 中不附加多个元素。

演示代码：

$('.stats-modify-btn').click(function() {
  var device = {
    "device_mac": "BCAEC5DA2D87"
  }
  var deviceMac = $(this).attr("data-device-mac");
  var title = $(this).attr("title");
  //check if the div has .collapse inside it
  if ($('#tr-' + deviceMac + " .collapse").length == 0) {
    var infoAccordion = `
    <div class="collapse row stats-device-table detail-slider" id="info-${device.device_mac}">
    <div class="col-sm-6" id="device_status_value">
    somethingss
    </div>
    </div>
    `;
    if (title == "Device Info") {
      $('#tr-' + deviceMac).append(infoAccordion)
    }
  }
});
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
<a data-device-mac="BCAEC5DA2D87" class="stats-modify-btn" title="Device Info" data-toggle="collapse" href="#info-BCAEC5DA2D87" role="button" aria-expanded="false" aria-controls="info-BCAEC5DA2D87">
  <i class="fa fa-info ml15">i</i>
</a>

<div id="tr-BCAEC5DA2D87">

</div>

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