Range.cloneRange() - Web APIs 编辑

The Range.cloneRange() method returns a Range object with boundary points identical to the cloned Range.

The returned clone is copied by value, not reference, so a change in either Range does not affect the other.

Syntax

clone = range.cloneRange();

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

Specification	Status	Comment
DOM The definition of 'Range.cloneRange()' in that specification.	Living Standard	No change.
Document Object Model (DOM) Level 2 Traversal and Range Specification The definition of 'Range.cloneRange()' in that specification.	Obsolete	Initial specification.

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