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/Dart 2

scrollY property

int scrollY

The distance this window has been scrolled vertically.

Other resources

Implementation

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

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-html/Window/scrollY.html