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), and specifies a single point in a DOM tree. To collapse a range, see the Range.collapse()
method.
Syntax
isCollapsed = range.collapsed;
Example
let 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. |
Obsolete | Initial specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
collapsed | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 4 | IE Full support 9 | Opera Full support 9 | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support