><var class="var">out</var> =</code> <strong class="def-name">plus</strong> <code class="def-code-arguments">(<var class="var">a</var>, <var class="var">b</var>)</code><a class="copiable-link" href="#index-plus-2"> &para;</a></span></dt>
<dd>
<p>String concatenation via plus operator.
</p>
<p>Concatenates the two input arrays, string-wise. Inputs that are
not string arrays are converted to string arrays.
</p>
<p>The concatenation is done by calling &lsquo;strcat&lsquo; on the inputs, and has the
same behavi