4 class="method-subtitle">Discussion</h4>
		<p>This is sometimes referred to as a transform, mutating one of each object:</p>

<pre><code> [foo performMap:^id(id obj) {
     return [dateTransformer dateFromString:obj];
 }];
</code></pre>
	</div>
	
	
	
	
	
	<div class="method-subsection see-also-section">
		<h4 class="method-subtitle">See Also</h4>
		<ul>
			
			<li><code><p>&lt;<a href="../Categories/NSOrderedSet+BlocksKit.html">NSOrderedSet(BlocksKit)</a>>map:</p></code></li>
			
		</ul>
	</div>
	
	
	
	<di