This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The Range.comparePoint()
method returns -1
, 0
, or 1
depending on whether the referenceNode
is before, the same as, or after the Range
.
If the reference node is a Node
of type Text
, Comment
, or CDATASection
, then offset is the number of characters from the start of reference node. For other Node
types, offset is the number of child nodes between the start of the reference node.
Syntax
returnValue = range.comparePoint(referenceNode, offset)
Parameters
referenceNode
- The
Node
to compare with theRange
. offset
- An integer greater than or equal to zero representing the offset inside the referenceNode.
Example
range = document.createRange(); range.selectNode(document.getElementsByTagName('div').item(0)); returnValue = range.comparePoint(document.getElementsByTagName('p').item(0), 1);
Specification
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Range.comparePoint()' in that specification. |
Living Standard | Initial specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
comparePoint | Chrome Full support Yes | Edge Full support 17 | Firefox Full support Yes | IE No support No | Opera Full support 15 | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support Yes | Opera Android Full support 14 | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.