 &quot;a&quot;, &quot;b&quot;, &quot;c&quot;)</code>.</p>
<p>Splats are useful in some compile-to-js languages such as Coffeescript, and also allow helpful shorthands for some common use cases.</p>
<hr>
<h3 id="function-signatures"><a href="#function-signatures">Function signatures</a></h3>
<p>Functions are denoted with an arrow (<code>-&gt;</code>). The left side of the arrow indicates the types of the input arguments and the right side indicates the type for the return value.</p>
<p>For example, <code>par