Programmatically create a KeyboardEvent.
Due to browser differences, keyCode, charCode, or keyIdentifier values cannot be specified in this base level constructor. This constructor enables the user to programmatically create and dispatch a KeyboardEvent, but it will not contain any particular key content. For programmatically creating keyboard events with specific key value contents, see the custom Event KeyEvent.
factory KeyboardEvent(String type, {Window view, bool canBubble: true, bool cancelable: true, int location, int keyLocation, // Legacy alias for location bool ctrlKey: false, bool altKey: false, bool shiftKey: false, bool metaKey: false}) { if (view == null) { view = window; } location ??= keyLocation ?? 1; KeyboardEvent e = document._createEvent("KeyboardEvent"); e._initKeyboardEvent(type, canBubble, cancelable, view, "", location, ctrlKey, altKey, shiftKey, metaKey); return e; }
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https://api.dart.dev/stable/2.5.0/dart-html/KeyboardEvent/KeyboardEvent.html