Window: scrollMaxX property

~~{{APIRef}} {{Non-standard_header}}~~

The Window.scrollMaxX read-only property returns the maximum number of pixels that the document can be scrolled horizontally.

Value

A number.

// Scroll to right edge of the page
let maxX = window.scrollMaxX;

window.scrollTo(maxX, 0);

Do not use this property to get the total document width, which is not equivalent to window.innerWidth + window.scrollMaxX, because ~~{{domxref("~~window.~~innerWidth")}}~~innerWidth includes the width of any visible vertical scrollbar, thus the result would exceed the total document width by the width of any visible vertical scrollbar. Instead use ~~{{domxref("element.scrollWidth","~~document.body.~~scrollWidth")}}~~scrollWidth. See also ~~{{domxref("~~window.~~scrollMaxY")}}~~scrollMaxY.

This is not part of any specification.

~~{{Compat}}~~