 to <code>prefix</code> to produce a unique directory
name. If <code>prefix</code> is missing or null, the empty string is used
for <code>prefix</code>. <a href="dart-io/Directory/createTemp.html">[...]</a>
                  
</dd>
        <dt id="createTempSync" class="callable">
          <span class="name"><a href="dart-io/Directory/createTempSync.html">createTempSync</a></span><span class="signature">(<wbr>[<span class="parameter" id="createTempSync-param-prefix"><span class="type-annotation"><a href="d