Function: string-or-null-p

string-or-null-p is a byte-compiled function defined in subr.el.gz.

Signature

(string-or-null-p OBJECT)

Documentation

Return t if OBJECT is a string or nil.

Otherwise, return nil.

Other relevant functions are documented in the string group.

View in manual

Probably introduced at or before Emacs version 22.1.

Shortdoc

;; string
(string-or-null-p "a")
    => t
  (string-or-null-p nil)
    => t

Source Code

;; Defined in /usr/src/emacs/lisp/subr.el.gz
(defun string-or-null-p (object)
  "Return t if OBJECT is a string or nil.
Otherwise, return nil."
  (or (stringp object) (null object)))