Range: collapse() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.
The Range.collapse()
method collapses the
Range
to one of its boundary points.
A collapsed Range
is empty, containing no content, specifying a
single-point in a DOM tree. To determine if a Range
is already collapsed,
see the Range.collapsed
property.
Syntax
js
collapse()
collapse(toStart)
Parameters
toStart
Optional-
A boolean value:
true
collapses theRange
to its start,false
to its end. If omitted, it defaults tofalse
Experimental .
Return value
None (undefined
).
Examples
js
const range = document.createRange();
const referenceNode = document.getElementsByTagName("div").item(0);
range.selectNode(referenceNode);
range.collapse(true);
Specifications
Specification |
---|
DOM # dom-range-collapse |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
collapse | ||||||||||||
toStart parameter is optional |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
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.