Function: seq-count

seq-count is a byte-compiled function defined in seq.el.gz.

Signature

(seq-count PRED SEQUENCE)

Documentation

Return the number of elements in SEQUENCE for which PRED returns non-nil.

Other relevant functions are documented in the sequence group.

View in manual

Shortdoc

;; sequence
(seq-count #'numberp '(1 b c 4))
    => 2

Implementations

(seq-count PRED SEQUENCE) in `seq.el'.

Undocumented

Source Code

;; Defined in /usr/src/emacs/lisp/emacs-lisp/seq.el.gz
(cl-defgeneric seq-count (pred sequence)
  "Return the number of elements in SEQUENCE for which PRED returns non-nil."
  (let ((count 0))
    (seq-doseq (elt sequence)
      (when (funcall pred elt)
        (setq count (+ 1 count))))
    count))