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POgetElementsByClassName returns [] instead of asynchronous appended node
 

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    <p>(I ask my question again after the first one was terribly formulated)</p> <p>I face the following problem:</p> <pre><code>&lt;div class="testA" id="test1"&gt;&lt;/div&gt; </code></pre> <p>The above written element is predefined. I now load a xml tree via <a href="http://lls-test.de/JS-Library/index.php" rel="nofollow">XMLHttpRequest &amp; Co.</a> delivering the following response:</p> <pre><code>&lt;response&gt; &lt;div class="colorSelector" id="0-0"&gt; &lt;div class="gbSelector" id="1-0"&gt; &lt;table style="none" id="2-0"&gt;&lt;/table&gt; &lt;/div&gt; &lt;/div&gt; &lt;/response&gt; </code></pre> <p>I now append the first <code>div</code> using</p> <pre><code>request.responseXML.getElementsByTagName("response")[0] .getElementsByTagName("div")[0] </code></pre> <p>into the predefined <code>div</code></p> <pre><code>&lt;div class="testA" id="test1"&gt; </code></pre> <p>The final document looks like this (checked using development tools):</p> <pre><code>&lt;div class="testA" id="test1"&gt; &lt;div class="colorSelector" id="0-0"&gt; &lt;div class="gbSelector" id="1-0"&gt; &lt;table style="none" id="2-0"&gt;&lt;/table&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <p>When I now try to get the element <code>&lt;div class="colorSelector" id="0-0"&gt;</code> using <code>getElementById("0-0")</code> I get the expected result.</p> <p>But using <code>getElementsByClassName("colorSelector")</code> returns <code>[]</code>.</p> <p>Did I miss something? Is it probably a leftover of the fact the nodes were of type <code>Element</code> and not <code>HTMLElement</code>?</p>
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    1. COAre the nodes actually commented out? If not, what is the context from which you're calling `getElementsByClassName`?
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    2. COThe real question is, why would `GetElementById` be getting something that is commented out? Are you sure it is returning something?
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    3. CO@ThatMatthew: OP has verified that `.getElementsByClassName` returns `[]`, which probably means the console is being used to verify. I'd guess that either the code comments aren't actually there, or there's another element on the page with the same ID.
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