ter2"><a href="#val-iter2" class="anchor"></a><code><span class="keyword">val</span> iter2 : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>&#45;&gt;</span> <span><span class="type-var">'b</span> <a href="index.html#type-t">t</a></span> <span>&#45;&gt;</span> <span>f:<span>(<span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'b</span> <span>&#45;&gt;</span> unit)</span></span> <span>&#45;&gt;</span> <span>unit <a href="index.html#module-Or_un