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/Dart 2

returnValue property

String returnValue

Implementation

String get returnValue => JS("String", "#.returnValue", this);
void returnValue= (String value)

Implementation

set returnValue(String value) {
  JS("void", "#.returnValue = #", this, value);
}

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-html/BeforeUnloadEvent/returnValue.html