ss="doc"><p>Inserts <code>insertion</code> into <code>s</code> at index <code>pos</code>.</p></div></div><div class="field "><a name="isNullOrEmpty"></a><h3 class="anchor"><code><span class="label label-static">static</span><span class="label label-inline">inline</span><a href="#isNullOrEmpty"><span class="identifier">isNullOrEmpty</span></a>(<span style="white-space:nowrap">s:<a class="type" title="String - The basic String class." href="../../String.html">String</a></span>):<a class="type" title="Bool - T