Range.cloneRange() - Web API 接口参考 编辑

Range.cloneRange()方法返回一个range对象，并且该对象的范围边界点与被克隆的range对象相同。

克隆的对象是复制过来的，而非引用，所以这两个对象双方各自做出的改变，都不会影响另一方。

语法

clone = range.cloneRange();

Example

range = document.createRange();
range.selectNode(document.getElementsByTagName("div").item(0));
clone = range.cloneRange();

Specifications

Specification	Status	Comment
DOM Range.cloneRange()	Living Standard	No change.
Document Object Model (DOM) Level 2 Traversal and Range Specification Range.cloneRange()	Obsolete	Initial specification.

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	1.0 (1.7 or earlier)	9.0	9.0	(Yes)

Feature	Android	Edge	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	1.0 (1.0)	9.0	9.0	(Yes)

See also

• The DOM interfaces index