This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The Selection.collapse() method collapses the current selection to a single point. The document is not modified. If the content is focused and editable, the caret will blink there.
sel.collapse(node, offset);
nodenull — if null is specified, the method will behave like Selection.removeAllRanges(), i.e. all ranges will be removed from the selection.offset Optional
parentNode to which the selection will be collapsed. If not specified, the default value 0 is used./* Place the caret at the beginning of an HTML document's body. */
var body = document.getElementsByTagName("body")[0];
window.getSelection().collapse(body,0);
| Specification | Status | Comment |
|---|---|---|
| Selection API The definition of 'Selection.collapse()' in that specification. | Working Draft | |
| HTML Editing APIs The definition of 'Selection.collapse()' in that specification. | Editor's Draft | Initial definition |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | 9.0 | (Yes) | (Yes) |
node parameter is nullable; offset parameter is optional | (Yes) | ? | 55 (55) | ? | (Yes) | (Yes) |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | ? | (Yes) | (Yes) | ? | ? | (Yes) |
node parameter is nullable; offset parameter is optional | ? | ? | 55.0 (55) | ? | ? | (Yes) |
Selection, the interface it belongs to.
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https://developer.mozilla.org/en-US/docs/Web/API/Selection/collapse