irror-gutter-elt">4</div></div><pre class=""><span>    <span class="cm-variable">a</span> <span class="cm-operator">=</span> <span class="cm-number">1</span>;</span></pre></div><div style="position: relative;"><div style="position: absolute; left: -31px;" class="CodeMirror-gutter-wrapper"><div style="left: 0px; width: 20px;" class="CodeMirror-linenumber CodeMirror-gutter-elt">5</div></div><pre class=""><span>    <span class="cm-keyword">var</span> <span class="cm-def">a</span>;</span></pre></div><div style=