свойство m13

num? m13

переопределение

Реализация

num? get m13 native;

void m13=(num? value)

set m13(num? value) native;

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Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.19.6/dart-html/DomMatrix/m13.html