This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The Selection.focusOffset read-only property returns the number of characters that the selection's focus is offset within the Selection.focusNode.
This number is zero-based. If the selection ends with the first character in the Selection.focusNode, 0 is returned.
Syntax
offset = sel.focusOffset
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Editing APIs The definition of 'Selection.focusOffset' in that specification. |
Editor's Draft | Initial definition |
| Selection API The definition of 'Selection.focusOffset' in that specification. |
Working Draft | Current |
Browser compatibility
We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | ? | ? | ? |
| Feature | Android | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | ? | (Yes) | (Yes) | 1.0 | ? | ? | ? |
See also
Selection, the interface it belongs to.