oves all elements of <code>other</code> from <code>self</code>.</p>

<ul><li>Equivalent to replacing <code>self</code> with <code>self.subtract(other)</code>.</li></ul>

    <h4>Declaration</h4>    
    <code class="language-swift">mutating func subtractInPlace(other: Self)</code>
    
    
</div></div>
</div>
<div class="declaration" id="func-union_">
<a class="toggle-link" data-toggle="collapse" href="#comment-func-union_">func union(<wbr>_:)</a>
     <span class="required">Required</span>    
<div class=