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.
collapse() collapse(toStart)
toStart
Optional
A boolean value: true collapses the Range to its start, false to its end. If omitted, it defaults to false Experimental .
var range = document.createRange(); referenceNode = document.getElementsByTagName("div").item(0); range.selectNode(referenceNode); range.collapse(true);
| Specification |
|---|
| DOM Standard # dom-range-collapse |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
collapse |
1
|
12
|
1
|
9
|
9
|
1
|
1
|
18
|
4
|
10.1
|
1
|
1.0
|
toStart_parameter_optional |
1
|
≤79
|
25
|
No
Optional but defaults to
true.
|
15
|
1
|
1
|
18
|
25
|
14
|
1
|
1.0
|
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https://developer.mozilla.org/en-US/docs/Web/API/Range/collapse
| Name | Web APIs |
| Version | |
| Badge |
|
| Last Updated | 2022-04-27T09:33:08Z |