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    window.scrollX Redirect 1

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    Summary

    Returns the number of pixels that the document has already been scrolled horizontally.

    Syntax

    var x = window.scrollX;

    Parameters

    • x is the number of pixels that the document is currently scrolled from the left.

    Example

    // If scrollX is greater than 400, reset scroll position to the top left of the document.
    if (window.scrollX > 400) {
      window.scroll(0,0);
    }

    Notes

    The pageXOffset property is an alias for the scrollX property:

    window.pageXOffset == window.scrollX; // always true

    For cross-browser compatibility, use window.pageXOffset instead of window.scrollX. Additionally, older versions of Internet Explorer (< 9) do not support either property and must be worked around by checking other non-standard properties. A fully compatible example:

    var x = (window.pageXOffset !== undefined) ? window.pageXOffset : (document.documentElement || document.body.parentNode || document.body).scrollLeft;
    var y = (window.pageYOffset !== undefined) ? window.pageYOffset : (document.documentElement || document.body.parentNode || document.body).scrollTop;

    Specification

    See also

    Document Tags and Contributors

    Contributors to this page: Sheppy
    Last updated by: Sheppy,
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