echo f 1, f 2 == echo(f(1), f(2)) and not echo(f(1, f(2)))</li>
<li>keep it as sugary as possible</li>
<li>prefer fn x,y over x.fn y over fn(x, y) unless it conflicts with the context<ul class="simple"><li>e.g. pref x.fn y,z when working with objects</li>
<li>e.g. pref fn x,y when working with procs</li>
<li>e.g. pref fn(x, ...) when chaining/closures (calling syntax impacts type compatibility (docs))</li>
</ul>
</li>
<li>prefer <tt class="docutils literal"><span class="pre"><span class="Operator">--</span>