Join MDN and developers like you at Mozilla's View Source conference, 12-14 September in Berlin, Germany. Learn more at https://viewsourceconf.org

The Range.collapsed read-only property returns a Boolean flag indicating whether the start and end points of the Range are at the same position. It returns true if the start and end boundary points of the Range are the same point in the DOM, false if not.

A collapsed Range is empty, containing no content, specifying a single-point in a DOM tree. The collapsed property is read-only. To collapse a range, see the Range.collapse() method.

Syntax

isCollapsed = range.collapsed;

Example

var range = document.createRange(); 

range.setStart(startNode,startOffset); 
range.setEnd(endNode,endOffset);
isCollapsed = range.collapsed;

Specifications

Specification Status Comment
DOM
The definition of 'Range.collapsed' in that specification.
Living Standard No change.
Document Object Model (DOM) Level 2 Traversal and Range Specification
The definition of 'Range.collapsed' 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

Document Tags and Contributors

 Contributors to this page: teoli, fscholz, jsx, kscarfone, Sheppy, ethertank, DR, Mgjbot, Maian, Jonnyq
 Last updated by: teoli,