« DOM Reference « Range

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 (further down in the document) than the end point will throw an ERROR_ILLEGAL_VALUE DOMException.


range.setStart(startNode, startOffset);


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


range = document.createRange();
startNode = document.getElementsByTagName("p").item(2);
startOffset = 0;


Specification Status Comment
DOM Living Standard No change.
Document Object Model (DOM) Level 2 Traversal and Range 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

Document Tags and Contributors

Contributors to this page: Sheppy, shubham.hatwar, Riboribo, Mcaruso, Nickolay, SkyLined, teoli
Last updated by: shubham.hatwar,