blocks|key|2623712|text|我看到你在使用jQuery，所以在你的帖子里添加了jQuery标签。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2623713|这就是问题所在。|2623714|​|2623715|$('#removeHighlight').on('click',+function(){
+++$('.highlight').each(function(){
+++++++$(this).replaceWith($(this).text());
+++})
})|code-block|syntax|javascript|2623716|.highlight+{
++background:+yellow;
}|2623717|<script+src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>This+is+a+stupid+bit+of+text+with+<span+class="highlight">highlight_1</span>+in+it+to+display+the+power+of+jquery+to+do+stuff+like+removing++<span+class="highlight">highlight_2</span>+in+a+html+document.+Go+on+and+press+the+button+to+see+the+<span+class="highlight">highlight_3</span>+magic.</p>
<button+id="removeHighlight">Remove</button>|2623718|2623719|2623720|如果您只想删除一个高亮显示，请执行此操作。|2623721|2623722|$('#removeHighlight').on('click',+function(){
+++++$('.highlight').first().replaceWith($('.highlight').first().text());
})|2623723|.highlight+{
++background:+yellow;
}|2623724|<script+src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>This+is+a+stupid+bit+of+text+with+<span+class="highlight">highlight_1</span>+in+it+to+display+the+power+of+jquery+to+do+stuff+like+removing++<span+class="highlight">highlight_2</span>+in+a+html+document.+Go+on+and+press+the+button+to+see+the+<span+class="highlight">highlight_3</span>+magic.</p>
<button+id="removeHighlight">Remove+1</button>|2623725|2623726|2623727|或者，如果您想在单击时将其移除|2623728|2623729|$('p').on('click',+'.highlight',+function(){
+++$(this).replaceWith($(this).text());
})|2623730|.highlight+{
++background:+yellow;
}|2623731|<script+src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>This+is+a+stupid+bit+of+text+with+<span+class="highlight">highlight_1</span>+in+it+to+display+the+power+of+jquery+to+do+stuff+like+removing++<span+class="highlight">highlight_2</span>+in+a+html+document.+Go+on+and+press+the+button+to+see+the+<span+class="highlight">highlight_3</span>+magic.</p>|2623732|2623733|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1E|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1F|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|1G|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|H|7|1H|8|@]|9|@]|A|$I|J]]|$1|M|3|N|5|H|7|1I|8|@]|9|@]|A|$I|J]]|$1|O|3|E|5|6|7|1J|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1L|8|@]|9|@]|A|$]]|$1|S|3|E|5|6|7|1M|8|@]|9|@]|A|$]]|$1|T|3|U|5|H|7|1N|8|@]|9|@]|A|$I|J]]|$1|V|3|W|5|H|7|1O|8|@]|9|@]|A|$I|J]]|$1|X|3|Y|5|H|7|1P|8|@]|9|@]|A|$I|J]]|$1|Z|3|E|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|1S|8|@]|9|@]|A|$]]|$1|13|3|E|5|6|7|1T|8|@]|9|@]|A|$]]|$1|14|3|15|5|H|7|1U|8|@]|9|@]|A|$I|J]]|$1|16|3|17|5|H|7|1V|8|@]|9|@]|A|$I|J]]|$1|18|3|19|5|H|7|1W|8|@]|9|@]|A|$I|J]]|$1|1A|3|E|5|6|7|1X|8|@]|9|@]|A|$]]|$1|1B|3|-4|5|6|7|1Y|8|@]|9|@]|A|$]]]|1C|$]]

<p>I saw you use jQuery so added the jQuery tag to your post.</p>

<p>This does the trick.</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>$('#removeHighlight').on('click', function(){
   $('.highlight').each(function(){
       $(this).replaceWith($(this).text());
   })
})</code></pre>
<pre class="snippet-code-css lang-css prettyprint-override"><code>.highlight {
  background: yellow;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
&lt;p&gt;This is a stupid bit of text with &lt;span class="highlight"&gt;highlight_1&lt;/span&gt; in it to display the power of jquery to do stuff like removing  &lt;span class="highlight"&gt;highlight_2&lt;/span&gt; in a html document. Go on and press the button to see the &lt;span class="highlight"&gt;highlight_3&lt;/span&gt; magic.&lt;/p&gt;
&lt;button id="removeHighlight"&gt;Remove&lt;/button&gt;</code></pre>
</div>
</div>
</p>

<hr>

<p>If you only want to remove one highlight do this.</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>$('#removeHighlight').on('click', function(){
     $('.highlight').first().replaceWith($('.highlight').first().text());
})</code></pre>
<pre class="snippet-code-css lang-css prettyprint-override"><code>.highlight {
  background: yellow;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
&lt;p&gt;This is a stupid bit of text with &lt;span class="highlight"&gt;highlight_1&lt;/span&gt; in it to display the power of jquery to do stuff like removing  &lt;span class="highlight"&gt;highlight_2&lt;/span&gt; in a html document. Go on and press the button to see the &lt;span class="highlight"&gt;highlight_3&lt;/span&gt; magic.&lt;/p&gt;
&lt;button id="removeHighlight"&gt;Remove 1&lt;/button&gt;</code></pre>
</div>
</div>
</p>

<hr>

<p>Or if you want to remove it on click </p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>$('p').on('click', '.highlight', function(){
   $(this).replaceWith($(this).text());
})</code></pre>
<pre class="snippet-code-css lang-css prettyprint-override"><code>.highlight {
  background: yellow;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
&lt;p&gt;This is a stupid bit of text with &lt;span class="highlight"&gt;highlight_1&lt;/span&gt; in it to display the power of jquery to do stuff like removing  &lt;span class="highlight"&gt;highlight_2&lt;/span&gt; in a html document. Go on and press the button to see the &lt;span class="highlight"&gt;highlight_3&lt;/span&gt; magic.&lt;/p&gt;</code></pre>
</div>
</div>
</p>


<p>JavaScript execCommand("HiliteColor") adds highlights really nicely by adding spans but I wanna be able to dynamically unhighlight text by checking to see if the selected text is in a span that is highlighted. Then there's the issue to wear of only half the selected text is in a span. I've tried adding the spans myself and trying to unhighlight them by:</p>

<pre><code>document.getElementsByClassName('highlight').remove();

alert(window.getComputedStyle(document.getElementById("pages"), null).getPropertyValue('background-color'));

alert(document.getElementById("pages").style.backgroundColor);
</code></pre>

<p>Just to see if I could check the background and then highlight or if I could remove the class highlight.</p>

<p>My project is on codepen at: <a href="https://codepen.io/pokepimp007/pen/wxGKEQ" rel="nofollow noreferrer">https://codepen.io/pokepimp007/pen/wxGKEQ</a></p>

<p><strong>ANSWER</strong></p>

<p>I created a function that takes a color parameter when a button is clicked. When delete highlight button is clicked it sends the parameter color "transparent":</p>

<pre><code>function Highlight(color) {
  document.designMode = "on";
  var sel = window.getSelection();
  sel.removeAllRanges();
  var range = document.createRange();
  range.setStart(editor.startContainer, editor.startOffset);
  range.setEnd(editor.endContainer, editor.endOffset);
  sel.addRange(range);
  if (!sel.isCollapsed) {
    if (!document.execCommand("HiliteColor", false, color)) {
      document.execCommand("BackColor", false, color);
    }
  }
  sel.removeAllRanges();
  document.designMode = "off";
}
</code></pre>


JavaScript execCommand("HiliteColor") unhighlight

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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