document.open();document.writeln('<div onmouseover="document.getElementById(\'snipt-2519\').style.display = \'block\'; return false;" onmouseout="document.getElementById(\'snipt-2519\').style.display = \'none\'; return false;" style="position: relative;">');document.writeln('<div class="highlight"><pre style="-moz-border-radius: 5px; border-radius: 5px; -webkit-border-radius: 5px; margin: 0; display: block; font: 11px Monaco, monospace !important; padding: 15px; background-color: #1C1C1C; overflow: auto; color: #D0D0D0;"><span style="color: #6ab825; font-weight: normal">var</span> <span style="color: #d0d0d0">newArr</span> <span style="color: #d0d0d0">=</span> <span style="color: #6ab825; font-weight: normal">new</span> <span style="color: #24909d">Array</span><span style="color: #d0d0d0">();</span><span style="color: #6ab825; font-weight: normal">for</span> <span style="color: #d0d0d0">(k</span> <span style="color: #6ab825; font-weight: normal">in</span> <span style="color: #d0d0d0">arr)</span> <span style="color: #6ab825; font-weight: normal">if</span><span style="color: #d0d0d0">(arr[k])</span> <span style="color: #d0d0d0">newArr.push(arr[k])</span>');document.writeln('</pre></div>');document.writeln('');document.writeln('<div style="background-color: #111; color: #D0D0D0; float: right; padding: 5px 10px; -moz-border-radius-topleft: 5px; -webkit-border-top-left-radius: 5px; border-top-left-radius: 5px; -moz-border-radius-bottomright: 5px; -webkit-border-bottom-right-radius: 5px; border-bottom-right-radius: 5px; font: 11px Arial,Sans-Serif; display: none; position: absolute; bottom: 0; right: 0;" id="snipt-2519">code hosted by <a href="http://snipt.net/pkarl/remove-undefined-elements-from-javascript-array" style="color: #0084FF; text-decoration: none;">snipt.net</a></div>');document.writeln('</div>');document.close();