Delete and replace


  To delete text as you type, press the Backspace key.
  To delete a block of text, select it and choose Delete from the Edit menu or press the Backspace key.
  To replace text, select it and type the replacement text.


Pressing the Backspace key backs up over characters one at a time.
If you accidentally delete something  with the Delete command, you can retrieve it with the Undelete command.
When text is selected, the Backspace key and the Delete command do the same thing: They delete the selection.
When you delete a word that you selected by double-clicking, spacing is automatically adjusted around the remaining words.


See also

Select text
Move and copy
Undelete command