d the ".." to prevent the periods being treated as decimal points.</p>

<p><b>Note:</b> For objects, ranges only apply to the initial un-named members part of the object. For example:</p>
<pre>
#(a, b, 7: c, 9: d)[0 .. 9]
    => #(a, b) // members 7 and 9 not included
</pre>