b14-20"><a href="#cb14-20" tabindex="-1"></a><span class="co">#&gt; [1] &quot;milk&quot; &quot;x&quot;</span></span>
<span id="cb14-21"><a href="#cb14-21" tabindex="-1"></a></span>
<span id="cb14-22"><a href="#cb14-22" tabindex="-1"></a><span class="co"># stringr</span></span>
<span id="cb14-23"><a href="#cb14-23" tabindex="-1"></a><span class="fu">str_extract</span>(shopping_list, <span class="at">pattern =</span> <span class="st">&quot;</span><span class="sc">\\</span><span class="st">d+&quot;</span>) </s