an> <span class="keyword">&#8209;&gt;</span> <a href="index.html#type-t">t</a>) <span class="keyword">&#8209;&gt;</span> sep:<a href="index.html#type-t">t</a> <span class="keyword">&#8209;&gt;</span> <span class="type-var">'a</span> list <span class="keyword">&#8209;&gt;</span> <a href="index.html#type-t">t</a> list</code></div><div class="doc"><p>Same as <a href="index.html#val-intersperse">intersperse</a> but map <code class="code">f</code> across elements at the same time.</p></div></div><div class="spec