Baseline Widely available
The Window.scrollBy()
method scrolls the document in the window by the given amount.
scrollBy(xCoord, yCoord)
scrollBy(options)
Parameters
xCoord
The horizontal pixel value that you want to scroll by.
yCoord
The vertical pixel value that you want to scroll by.
options
An object containing the following properties:
top
Specifies the number of pixels along the Y axis to scroll the window or element.
left
Specifies the number of pixels along the X axis to scroll the window or element.
behavior
Specifies whether the scrolling should animate smoothly (smooth
), happen instantly in a single jump (instant
), or let the browser choose (auto
, default).
None (undefined
).
To scroll down one page:
window.scrollBy(0, window.innerHeight);
To scroll up:
window.scrollBy(0, -window.innerHeight);
Using options
:
window.scrollBy({
top: 100,
left: 100,
behavior: "smooth",
});
Notes
window.scrollBy()
scrolls by a particular amount, whereas window.scroll()
scrolls to an absolute position in the document. See also window.scrollByLines()
and window.scrollByPages()
.
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