Selection.extend()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.

实验性: 这是一项实验性技术
在将其用于生产之前,请仔细检查浏览器兼容性表格

Selection.extend() 方法移动选中区的焦点到指定的点。选中区的锚点不会移动。选中区将从锚点开始到新的焦点,不管方向。

语法

js
extend(node)
extend(node, offset)

参数

node

焦点会被移至此节点内。

offset 可选

焦点会被移至 node 内的偏移位置。如果没有指定,使用 0 作为默认值。

规范

Specification
Selection API
# dom-selection-extend

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
extend
Accepts node parameter in any tree/shadow tree
Experimental
offset parameter is optional

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
In development. Supported in a pre-release version.
In development. Supported in a pre-release version.
No support
No support
Experimental. Expect behavior to change in the future.

参见