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 the Range to its start, false to its end. If omitted, it defaults to false 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 GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
collapse
toStart parameter is optional

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also