factory CustomEvent(String type, {bool canBubble: true, bool cancelable: true, Object detail}) { final CustomEvent e = document._createEvent('CustomEvent'); e._dartDetail = detail; // Only try setting the detail if it's one of these types to avoid // first-chance exceptions. Can expand this list in the future as needed. if (detail is List || detail is Map || detail is String || detail is num) { try { detail = convertDartToNative_SerializedScriptValue(detail); e._initCustomEvent(type, canBubble, cancelable, detail); } catch (_) { e._initCustomEvent(type, canBubble, cancelable, null); } } else { e._initCustomEvent(type, canBubble, cancelable, null); } return e; }
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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-html/CustomEvent/CustomEvent.html