efaq: Replacing highlighted text

 
 5.10 How can I replace highlighted text with what I type?
 =========================================================
 
 Use ‘delete-selection-mode’, which you can start automatically by
 placing the following Lisp form in your ‘.emacs’ file:
 
      (delete-selection-mode 1)
 
    According to the documentation string for ‘delete-selection-mode’
 (which you can read using ‘M-x describe-function <RET>
 delete-selection-mode <RET>’):
 
      When Delete Selection mode is enabled, typed text replaces the
      selection if the selection is active.  Otherwise, typed text is
      just inserted at point regardless of any selection.
 
    This mode also allows you to delete (not kill) the highlighted region
 by pressing <DEL>.