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.


offset = sel.focusOffset


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

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support ? (Yes) (Yes) ? ? ?
Feature Android Edge Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support ? (Yes) (Yes) 1.0 ? ? ?

See also

Document Tags and Contributors

 Last updated by: abbycar,