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The Range.setStart() method sets the start position of a Range.
If the startNode is a Node of type Text, Comment, or CDATASection, then startOffset is the number of characters from the start of startNode. For other Node types, startOffset is the number of child nodes between the start of the startNode.
Setting the start point below (lower in the document) the end point will result in a collapsed range with the start and end points both set to the specified start position.
Syntax
range.setStart(startNode, startOffset);
Parameters
- startNode
- The
Nodewhere theRangeshould start. - startOffset
- An integer greater than or equal to zero representing the offset for the start of the
Rangefrom the start ofstartNode.
Example
var range = document.createRange();
var startNode = document.getElementsByTagName("p").item(2);
var startOffset = 0;
range.setStart(startNode,startOffset);
Specifications
| Specification | Status | Comment |
|---|---|---|
| DOM The definition of 'Range.setStart()' in that specification. |
Living Standard | No change. |
| Document Object Model (DOM) Level 2 Traversal and Range Specification The definition of 'Range.setStart()' in that specification. |
Recommendation | Initial specification. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | (Yes) | 1.0 (1.7 or earlier) | 9.0 | 9.0 | (Yes) |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | (Yes) | 1.0 (1.0) | 9.0 | 9.0 | (Yes) |
See also
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