The read-only collapsed property of the AbstractRange interface returns true if the range's start position and end position are the same.
The read-only collapsed property of the AbstractRange interface returns true if the range's start position and end position are the same.
A boolean value which is true if the range is collapsed. A collapsed range is one in which the start and end positions are the same, resulting in a zero-character-long range.
js
let isCollapsed = range.collapsed;
| Specification |
|---|
| DOM Standard # ref-for-dom-range-collapsed① |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
collapsed |
90 | 9018–79 | 69 | No | 76 | 14.1 | 90 | 90 | 79 | 64 | 14.5 | 15.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/AbstractRange/collapsed