=proto
void duk_put_var(duk_context *ctx);

=stack
[ ... varname! val! ] -> [ ... ]

=summary

<!--FIXME-->
<p>Write <code>val</code> to the identifier <code>varname</code>.  Possible outcomes:</p>
<ul>
<li>If identifier is found and write succeeds: XXX.</li>
<li>If identifier is found and write fails (e.g. write-protected property): XXX.</li>
<li>If identifier is not found but can be created: XXX.</li>
<li>If identifier is not found and cannot be created (e.g. global object is
    non-extensible): XXX.</li>
<li>If the input stack does not contain enough arguments (or some other internal
    error occurs), throws an error.</li>
</ul>

FIXME

<p>The identifier write is equivalent to the Ecmascript expression:</p>
<pre class="ecmascript-code">
varname = val
</pre>

=example
FIXME

=tags
variable
omit

=fixme
There could be a return value indicating whether the put failed.  This is
not relevant in strict mode, but in non-strict mode a variable put can
silently fail.  Incomplete.