jquery 删除节点并保留子节点

Question

我很惭愧 post 这个问题，但我还没有设法在 Jquery 中使用 unwrap 或 replaceWith 方法来满足这个需要。

我的问题很简单：我需要删除 html 代码的一些节点（jquery 选择器）而不丢失这些节点的子节点。

这是一个 Jsfiddle，它展示了我用于实现目标的难看代码的结果 https://jsfiddle.net/uddaeh1u/15/（是的，它有效...）

// var content : the html source code of the wysiwyg

var result = '';
$(content).contents().each(function(){
    var addContent = '';
    // textNode
    if(this.nodeType == 3) {
        // Text Node
        result+= $(this).text();
    } else if(this.nodeType == 1 && $(this).hasClass('atwho-inserted')) {
        // if is an Object Node with the target class
        // I only keep it's contents (means that ".atwho-inserted" is not kept)
        result+= $(this).html();
    } else {
        // in any other case I keep it entirely
        result+= this.outerHTML;
    }
});

你能帮我找到一个更好的代码（使用 unwrap 方法）吗？

非常感谢:)

Answer 1

基本上 outerHTML 就是你要用 innerHTML 替换的内容 (unwrap) 检查 https://developer.mozilla.org/en-US/docs/Web/API/Element/outerHTML#Browser_compatibility

$('#trigger').click(function() {
  $(this).hide();
  $('.atwho-inserted').each(function() {
    this.outerHTML = $(this).html();
  });
});

body{
  padding:10px;
}

.atwho-inserted{
  background-color:red;
}

pre code, .wrap{
  white-space: pre-line;
}

#trigger {
  font-size: 1.5em;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<button id="trigger">Click to trigger edition</button>

<div class="container">
  <div class="row">
    <div class="col-xs-6">
      <div class="well">All selectors ".atwho-inserted" are in "background-color:red" and have to be removed without losing its children.</div>
      <div class="start">
        <p>
          <span class="atwho-inserted" data-atwho-at-query="@fac" contenteditable="false">
            <span class="user_mention" data-identifier="8930">@facticeuserr</span>
          </span>
          <br /> some lorem ipsum text
          <span class="atwho-inserted" data-atwho-at-query="#acc" contenteditable="false">
            <span class="tag_mention" data-identifier="484">#accessibilité</span>
          </span>
          <br>
          <img src="http://lorempixel.com/100/100/" data-filename="3">
          <br />
          <b>hello</b>
          <br>
          <span class="atwho-inserted" data-atwho-at-query="#acc" contenteditable="false">
            <span class="tag_mention" data-identifier="653">#Accompagnement</span>
          </span>
        </p>
      </div>
      <pre class="startCode"><code></code></pre>
    </div>
    <div class="col-xs-6">    
      <div class="well">Here the result<br /> it's works but code is not optimized</div>
      <div class="result"></div>
      <pre class="resultCode"><code></code></pre>
    </div>
  </div>
</div>

Answer 2

如果您的目的是仅删除 span.atwho-inserted 而没有其 children 并且 DOM 的其余部分保持不变，您可以通过以下方式实现：

$('.start .atwho-inserted').children(':first-child').unwrap();

首先selectclass.atwho-inserted的元素，然后找到它们各自的first-child并执行unwrap。

unwrap 删除 select 或直接 parent 包装器并留下 children.

一切顺利！

Answer 3

我想这个会让你满意。注意修改var tmp

$(document).ready(function(){
  var content = $('.start').html();
  $('.startCode code').text(content);
  
  var tmp = $(content);
  $('.atwho-inserted', tmp).children().unwrap();
  var result = tmp[0].outerHTML; // or tmp.html(); but would lose the outermost tag
  
  $('.result').html(result);
  $('.resultCode').text(result);
});

body{
  padding:10px;
}
.atwho-inserted{
  background-color:red;
}
pre code, .wrap{
  white-space: pre-line;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>


<div class="container">
  <div class="row">
    <div class="col-xs-6">
      <div class="well">All selectors ".atwho-inserted" are in "background-color:red" and have to be removed without losing its children.</div>
      <hr/>
      <div class="start">
        <p>
          <span class="atwho-inserted" data-atwho-at-query="@fac" contenteditable="false">
            <span class="user_mention" data-identifier="8930">@facticeuserr</span>
          </span>
          <br /> some lorem ipsum text
          <span class="atwho-inserted" data-atwho-at-query="#acc" contenteditable="false">
            <span class="tag_mention" data-identifier="484">#accessibilité</span>
          </span>
          <br>
          <img src="http://lorempixel.com/100/100/" data-filename="3">
          <br />
          <b>hello</b>
          <br>
          <span class="atwho-inserted" data-atwho-at-query="#acc" contenteditable="false">
            <span class="tag_mention" data-identifier="653">#Accompagnement</span>
          </span>
        </p>
      </div>
      <pre class="startCode"><code></code></pre>
    </div>
    <hr/>
    <div class="col-xs-6">    
      <div class="well">Here the result<br /> it's works but code is not optimized</div>
      <hr/>
      <div class="result"></div>
      <pre class="resultCode"><code></code></pre>
    </div>
  </div>
</div>

Answer 4

这是另一个 JsFiddle，我在其中添加了 unwrap() 解决方案 https://jsfiddle.net/uddaeh1u/21/

$(content).find('.atwho-inserted').children(':first-child').unwrap();

我认为问题在于 unwrap() 仅 returns jquery 对象解包并且只能应用于 DOM （不是来自被视为 Dom 对象).

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