Window.scrollX

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨2015年7月⁩.

* Some parts of this feature may have varying levels of support.

返回文档/页面水平方向滚动的像素值。

示例

// 如果 scrollX 大于 400，则把文档重新滚动到左上角。
if (window.scrollX > 400) {
  window.scroll(0, 0);
}

pageXOffset 属性是 scrollX 属性的别名。这意味这如果你没有为其中的任一属性重新赋值，window.pageXOffset == window.scrollX 总为真。

Specification
CSSOM View Module # dom-window-scrollx

This page was last modified on ⁨2024年9月4日⁩ by MDN contributors.