=proto
int duk_is_object(duk_context *ctx, int index);

=stack
[ ... val! ... ]

=summary
<p>Returns 1 if value at <code>index</code> is an object, otherwise
returns 0.  If <code>index</code> is invalid, also returns 0.</p>

<p>Note that many values are considered to be an object, e.g.:</p>

<ul>
<li>Ecmascript object</li>
<li>Ecmascript array</li>
<li>Ecmascript function</li>
<li>Duktape thread (coroutine)</li>
<li>Duktape internal objects</li>
</ul>

<p>Specific object types can be checked with separate API calls,
e.g. <code><a href="#duk_is_array">duk_is_array()</a></code>.</p>

=example
if (duk_is_object(ctx, -3)) {
    /* ... */
}

=tags
stack
object