</td><td class="msg">'a' is already defined.</td></tr></tbody></table></div></div><iframe></iframe></div>
<h3 id="why-do-i-get-this-error-">Why do I get this error?</h3>
<p>This error is raised to highlight a <strong>probable bug</strong>. Your code will most likely
fail to work as expected if you do not resolve this issue.</p>
<p>Since variable and function declarations are hoisted to the top of the scope in
which they occur the above code is effectively interpreted as a single
declaration followed by two 