Window: scrollMaxX property
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
TheWindow.scrollMaxX read-only property returns themaximum number of pixels that the document can be scrolled horizontally.
Value
A number.
Examples
// Scroll to right edge of the pagelet maxX = window.scrollMaxX;window.scrollTo(maxX, 0);Notes
Do not use this property to get the total document width, which is not equivalent towindow.innerWidth + window.scrollMaxX,becausewindow.innerWidth includes the width of any visible verticalscrollbar, thus the result would exceed the total document width by the width of anyvisible vertical scrollbar. Instead usedocument.body.scrollWidth. See alsowindow.scrollMaxY.
Specifications
This is not part of any specification.