ray" href="./Array.html">Array</a>&lt;<span class="type">T</span>&gt;</code></h3><div class="doc"><p>Returns a new Array by appending the elements of <code>a</code> to the elements of
<code>this</code> Array.</p>
<p>This operation does not modify <code>this</code> Array.</p>
<p>If <code>a</code> is the empty Array <code>[]</code>, a copy of <code>this</code> Array is returned.</p>
<p>The length of the returned Array is equal to the sum of <code>this.<a href="#length">length</a></code>
and <code>a.length</co