phpjs/_octopress/source/functions/array_flip/_comments.html

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<strong>
<a href="http://brett-zamir.me" rel="nofollow">Brett Zamir</a>
</strong>
on 2011-07-20 03:47:32 <br />
@Pier Paolo Ramon: Good catch! Thanks--fixed in Git... (This function as with many others still needs to support reliably ordered associative arrays--see PHPJS_Array() in array().)
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<strong>
<a href="www.mastersoup.com" rel="nofollow">Pier Paolo Ramon</a>
</strong>
on 2011-07-15 16:45:51 <br />
You should check if it's a property of the object, with hasOwnProperty.

<pre><code>
for (key in trans) {
  if (!trans.hasOwnProperty(key)) continue;
  tmp_ar[trans[key]] = key;
}
<pre><code>
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