Function script::dom::customelementregistry::get_callback

source ยท 
fn get_callback(
    cx: JSContext,
    prototype: HandleObject<'_>,
    name: &CStr,
) -> Result<Option<Rc<Function>>, Error>
Expand description

https://html.spec.whatwg.org/multipage/#dom-customelementregistry-define Step 14.4: Get callbackValue for all callbackName in lifecycleCallbacks.