numberValue property
num numberValueSource
@DomName('XPathResult.numberValue')
@DocsEditable()
num get numberValue =>
    _blink.BlinkXPathResult.instance.numberValue_Getter_(this);
    © 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
    https://api.dartlang.org/stable/1.24.3/dart-html/XPathResult/numberValue.html