<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">f</span> </span>= <span class="hljs-keyword">for</span> x &lt;- <span class="hljs-type">Nil</span> <span class="hljs-keyword">do</span> println(<span class="hljs-string">&quot;hello&quot;</span>)