Range.collapsed
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 |
---|
DOM Standard (DOM) # ref-for-dom-range-collapsed① |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
collapsed |
1 |
12 |
1 |
9 |
9 |
1 |
1 |
18 |
4 |
10.1 |
1 |
1.0 |
See also
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Range/collapsed