Range.setStart

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 the Range should start.

startOffset

An integer greater than or equal to zero representing the offset for the start of the Range from the start of startNode.

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

See also

• The DOM interfaces index