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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
Node
where theRange
should start. - startOffset
- An integer greater than or equal to zero representing the offset for the start of the
Range
from 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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