String value

Source 

@DomName('HTMLButtonElement.value')
@DocsEditable()
String get value =>
    _blink.BlinkHTMLButtonElement.instance.value_Getter_(this);
void value=(String value)

Source 

@DomName('HTMLButtonElement.value')
@DocsEditable()
set value(String value) =>
    _blink.BlinkHTMLButtonElement.instance.value_Setter_(this, value);