domEventDetailNumber function

double? domEventDetailNumber(
  1. Object? event,
  2. String key
)

Read a numeric field from a CustomEvent's detail object (web).

Implementation

double? domEventDetailNumber(Object? event, String key) {
  final JSObject? ev = event as JSObject?;
  final JSObject? detail = ev?.getProperty<JSAny?>('detail'.toJS) as JSObject?;
  final JSAny? value = detail?.getProperty<JSAny?>(key.toJS);
  return (value as JSNumber?)?.toDartDouble;
}