querySelector<E extends UIElement> method
Alias to content.querySelector
.
Implementation
E? querySelector<E extends UIElement>(String? selectors) {
if (selectors == null || selectors.isEmpty) return null;
if (E == UIElement) {
var elem = content?.querySelector(selectors);
return elem is E ? elem : null;
} else {
return content?.querySelectorAll(selectors).whereType<E>().firstOrNull;
}
}