String pattern

Source 

@DomName('HTMLInputElement.pattern')
@DocsEditable()
String get pattern =>
    _blink.BlinkHTMLInputElement.instance.pattern_Getter_(this);
void pattern=(String value)

Source 

@DomName('HTMLInputElement.pattern')
@DocsEditable()
set pattern(String value) =>
    _blink.BlinkHTMLInputElement.instance.pattern_Setter_(this, value);