duktape/website/api/duk_require_null.txt

=proto
void duk_require_null(duk_context *ctx, int index);

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

=summary
<p>Throw an error if the value at <tt>index</tt> is not <tt>null</tt>
or if the index is invalid.</p>

<div class="note">
There is no "get" primitive (<tt>duk_get_null()</tt>) because such a
function would be a no-op.
</div>

=example
duk_require_null(ctx, -3);

=tags
stack
api doc and tests for duk_require_XXX (except duk_require_context which already existed) 11 years ago			`=proto`
			`void duk_require_null(duk_context *ctx, int index);`

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

			`=summary`
			`<p>Throw an error if the value at <tt>index</tt> is not <tt>null</tt>`
			`or if the index is invalid.</p>`

			`<div class="note">`
			`There is no "get" primitive (<tt>duk_get_null()</tt>) because such a`
			`function would be a no-op.`
			`</div>`

			`=example`
			`duk_require_null(ctx, -3);`
add an initial set of (more or less random) tags to api docs 11 years ago
			`=tags`
			`stack`