Свойство context2D
API для рисования на этом холсте.
Реализация
CanvasRenderingContext2D get context2D =>
JS('Null|CanvasRenderingContext2D', '#.getContext(#)', this, '2d');
© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-html/CanvasElement/context2D.html
