CODE>Object</CODE>.</P><P>It provides the following fields:</P><UL CLASS="itemize"><LI CLASS="li-itemize">
<CODE>$(o.object-length)</CODE>: the number of fields and methods in the object.
</LI><LI CLASS="li-itemize"><CODE>$(o.object-mem &lt;var&gt;)</CODE>: returns <CODE>true</CODE> iff the <CODE>&lt;var&gt;</CODE> is a field
or method of the object.
</LI><LI CLASS="li-itemize"><CODE>$(o.object-add &lt;var&gt;, &lt;value&gt;)</CODE>: adds the field to the object,
returning a new object.
</LI><LI CLASS="li-i