List of chars to string in Emacs Lisp

Question

I have a list of characters (?h ?e ?l ?l ?o) and i want to convert it to string "hello". Currently i use this structure:

(concat (mapcar (lambda (ch) (char-to-string ch)) s))

Is there a more elegant and idiomatic way to convert list of chars to a string in Elisp?

score 10 · Accepted Answer · answered Jan 06 '13 at 21:20

10

Elisp's concat returns a string:

(concat '(?h ?e ?l ?l ?o))

(Found it out from coerce implementation in cl)

answered Jan 06 '13 at 21:20

Anton Kovalenko

score 7 · Answer 2 · answered Jan 07 '13 at 12:56

7

There's also (apply #'string LIST-OF-CHARS).

answered Jan 07 '13 at 12:56

Stefan

On my version of emacs (version 24.4) this also works without `#` as `(apply 'string LIST-OF-CHARS)` – lauir Apr 19 '20 at 16:55

2 Answers2