# `length` The `length` filter returns the number of items of a sequence or mapping, orthe length of a string: <table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1 2 3</pre></div></td><td class="code"><div class="highlight"><pre>{% if users|length &gt; 10 %} ... {% endif %} </pre></div></td></tr></table>