i-j-k-l-m-n-o-p-q-r-s-t-u-v-w-x-y-z&quot;</span></span></code></pre></div>
<p>The advantage of <code>str_flatten()</code> is that it always returns
a vector the same length as its input; to predict the return length of
<code>paste()</code> you must carefully read all arguments.</p>
</div>
<div id="str_dup-duplicate-strings-within-a-character-vector" class="section level2">
<h2><code>str_dup()</code>: duplicate strings within a character
vector</h2>
<p>To duplicate strings within a character vector use
<code