W3cubDocs

/Dart 2

scrollY property

int scrollY

The distance this window has been scrolled vertically.

Other resources

The Screen interface specification from W3C. scrollY from MDN.

Implementation

int get scrollY => JS('bool', '("scrollY" in #)', this)
    ? JS('num', '#.scrollY', this).round()
    : document.documentElement.scrollTop;

© 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/Window/scrollY.html