# `do`
New in version 1.5: The `do` tag was added in Twig 1.5.
The `do` tag works exactly like the regular variable expression (`{{ ...}}`) just that it doesn't print anything:
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1</pre></div></td><td class="code"><div class="highlight"><pre>{% do 1 + 2 %}
</pre></div></td></tr></table>
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