jQuery找到最近的ID并删除其中一个类名

时间：2017-07-12 14:07:03

标签： javascript jquery closest

嘿所有我想弄清楚如何找到 DIV 的下一个最接近的 ID ，然后我需要替换一个其类名（class =“something0 something1 something2”）。

我必须使用的是这个html：

<div class="col-sm-10">
    <select class="tips form-control searchable-select-holder-req" data-tooltip="example 1" data-val="" id="environment" name="environment" style="width: 260px; display: none;">
        <option value="1">IT</option>
        <option value="2">FRASTRUCTURE</option>
        <option value="3">blah 2</option>
        <option value="4">blah 3</option>
        <option value="5">blah 4</option>
        <option value="6">blah 5</option>
        <option value="7">blah 6</option>
        <option value="8">SPARE</option>
        <option value="9">LAB</option>
        <option value="10">STUDY</option>
    </select>
    <div tabindex="0" class="searchable-select" style="width: 260px; min-width: 260px;">
        <div class="tips searchable-select-holder searchable-select-holder-req" data-tooltip="example 1" data-tag="environment"></div>
        <div class="searchable-select-dropdown">
            <span>Search:</span> 
            <input type="text" class="searchable-select-input" style="width: 250px; max-width: 185px; background-color: rgb(254, 231, 231);" />
            <div class="searchable-scroll has-next">
                <div class="searchable-has-privious searchable-select-hide">...</div>
                <div class="searchable-select-items mCustomScrollbar _mCS_2" style="font-family: Courier New, Courier, monospace;">
                    <div id="mCSB_2" class="mCustomScrollBox mCS-bodyScroll mCSB_vertical mCSB_inside" style="max-height: 185px;" tabindex="0">
                        <div id="mCSB_2_container" class="mCSB_container" style="position:relative; top:0; left:0;" dir="ltr">
                          <div class="searchable-select-item" data-value=""></div>
                          <div class="searchable-select-item" data-value="1">IT</div>
                          <div class="searchable-select-item" data-value="2">FRASTRUCTURE</div>
                          <div class="searchable-select-item" data-value="3">blah 2</div>
                          <div class="searchable-select-item selected" data-value="4">blah 3</div>
                          <div class="searchable-select-item" data-value="5">blah 4</div>
                          <div class="searchable-select-item" data-value="6">blah 5</div>
                          <div class="searchable-select-item" data-value="7">blah 6</div>
                          <div class="searchable-select-item" data-value="8">SPARE</div>
                          <div class="searchable-select-item" data-value="9">LAB</div>
                          <div class="searchable-select-item" data-value="10">STUDY</div>
                        </div>
                        <div id="mCSB_2_scrollbar_vertical" class="mCSB_scrollTools mCSB_2_scrollbar mCS-bodyScroll mCSB_scrollTools_vertical mCSB_scrollTools_onDrag_expand" style="display: block;">
                            <div class="mCSB_draggerContainer">
                                <div id="mCSB_2_dragger_vertical" class="mCSB_dragger" style="position: absolute; min-height: 30px; top: 0px; display: block; height: 104px; max-height: 175px;" oncontextmenu="return false;">
                                    <div class="mCSB_dragger_bar" style="line-height: 30px;"></div>
                                </div>
                                <div class="mCSB_draggerRail"></div>
                            </div>
                        </div>
                    </div>
                </div>
                <div class="searchable-has-next">...</div>
            </div>
        </div>
    </div>
</div>

我目前正处于代码的 data-tag =“enviroment”部分，以更改内部文本，我可以毫无问题地执行此操作。现在，我需要找到下一个/最近的 div ID mCSB_2_container ，然后在其中找到 DIV 有一个选择和删除它的类，并将其放在第一个 div项目（这里将是一个空白值）。

这是我现在用来进入****部分的JS：

$("select").each(function() {
   $('[data-tag="' + this.id + '"]').text(''); //Clears Text
   //$(this).next('#mCSB_2_container').removeClass("selected");
});

从代码中可以看出，我尝试使用 $（this）.next（'＃mCSB_2_container'）。removeClass（“selected”）; 但这似乎不起作用它在 mCSB_2_container 中寻找班级名称已选择。

任何帮助都可以很好地解决这个问题！

2 个答案:

答案 0 :(得分：1)

您可以使用find()查找所选的类，如：$(this).next('.searchable-select').find('.selected').removeClass("selected");。请参阅下面的工作代码：

＆＃13;
＆＃13; 
$("select").each(function() {
  $('[data-tag="' + this.id + '"]').text(''); //Clears Text
  $(this).next('.searchable-select').find('.selected').removeClass("selected");
  $(this).next('.searchable-select').find('.searchable-select-item:first-child').addClass('selected');
});
＆＃13; 
.selected {
  background: #f00;
}
＆＃13; 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-sm-10">
  <select class="tips form-control searchable-select-holder-req" data-tooltip="example 1" data-val="" id="environment" name="environment" style="width: 260px;">
        <option value="1">IT</option>
        <option value="2">INFRASTRUCTURE</option>
        <option value="3">blah</option>
        <option value="4">blah</option>
        <option value="5">blah</option>
        <option value="6">blah</option>
        <option value="7">blah</option>
        <option value="8">SPARE</option>
        <option value="9">LAB</option>
        <option value="10">STUDY</option>
    </select>
  <div tabindex="0" class="searchable-select" style="width: 260px; min-width: 260px;">
    <div class="tips searchable-select-holder searchable-select-holder-req" data-tooltip="example 1" data-tag="environment"></div>
    <div class="searchable-select-dropdown">
      <span>Search:</span>
      <input type="text" class="searchable-select-input" style="width: 250px; max-width: 185px; background-color: rgb(254, 231, 231);" />
      <div class="searchable-scroll has-next">
        <div class="searchable-has-privious searchable-select-hide">...</div>
        <div class="searchable-select-items mCustomScrollbar _mCS_2" style="font-family: Courier New, Courier, monospace;">
          <div id="mCSB_2" class="mCustomScrollBox mCS-bodyScroll mCSB_vertical mCSB_inside" style="max-height: 185px;" tabindex="0">
            <div id="mCSB_2_container" class="mCSB_container" style="position:relative; top:0; left:0;" dir="ltr">
              <div class="searchable-select-item" data-value="">first item</div>
              <div class="searchable-select-item" data-value="1">IT</div>
              <div class="searchable-select-item" data-value="2">FRASTRUCTURE</div>
              <div class="searchable-select-item" data-value="3">blah 2</div>
              <div class="searchable-select-item selected" data-value="4">blah 3</div>
              <div class="searchable-select-item" data-value="5">blah 4</div>
              <div class="searchable-select-item" data-value="6">blah 5</div>
              <div class="searchable-select-item" data-value="7">blah 6</div>
              <div class="searchable-select-item" data-value="8">SPARE</div>
              <div class="searchable-select-item" data-value="9">LAB</div>
              <div class="searchable-select-item" data-value="10">STUDY</div>
            </div>
            <div id="mCSB_2_scrollbar_vertical" class="mCSB_scrollTools mCSB_2_scrollbar mCS-bodyScroll mCSB_scrollTools_vertical mCSB_scrollTools_onDrag_expand" style="display: block;">
              <div class="mCSB_draggerContainer">
                <div id="mCSB_2_dragger_vertical" class="mCSB_dragger" style="position: absolute; min-height: 30px; top: 0px; display: block; height: 104px; max-height: 175px;" oncontextmenu="return false;">
                  <div class="mCSB_dragger_bar" style="line-height: 30px;"></div>
                </div>
                <div class="mCSB_draggerRail"></div>
              </div>
            </div>
          </div>
        </div>
        <div class="searchable-has-next">...</div>
      </div>
    </div>
  </div>
</div>
＆＃13;
＆＃13;
＆＃13;

答案 1 :(得分：0)

我想也许你可以做到这一点。

dmy
$('.container').click(function(e) {
    e.preventDefault();
    var x = $(this).next().attr('id');
    $('.container').remove(x);
});

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