int scrollX

The distance this window has been scrolled horizontally.

Other resources

The Screen interface specification from W3C. scrollX from MDN.

Source

@DomName('Window.scrollX')
@DocsEditable()
int get scrollX => JS('bool', '("scrollX" in #)', this)
    ? JS('num', '#.scrollX', this).round()
    : document.documentElement.scrollLeft;