t;</code></h3><div class="doc"><p>Removes the first element of <code>this</code> Array and returns it.</p>
<p>This operation modifies <code>this</code> Array in place.</p>
<p>If <code>this</code> has at least one element, <code>this</code>.length and the index of each
remaining element is decreased by 1.</p>
<p>If <code>this</code> is the empty Array <code>[]</code>, <code>null</code> is returned and the length
remains 0.</p></div></div><div class="field "><a name="slice"></a><h3 class="anchor"><code><a hre