December 2012
1 post
Duplicated keyword arguments
If a function call has two pairs of keyword arguments with the same keyword, the leftmost argument pair is used. This can be helpful if a list of keyword arguments is received and you want to selectively override some value in that argument list in application. There’s no need to use mutation or produce a fresh variation of the list.
For example:
(defun write-escaped (object &rest args...
