4 ms·

Most of the time when I am just coding on my personal or small emacs lisp packages I really like the convenience of anaphoric functions. I have never seen an e

• daptaq 4y ago
  > I have never seen an example of if-let that made me understand it, but I see thread-first and thread-last, those may be useful. They are often useful when you have a computation that might fail at any step, sort of like with Maybe monads in Haskell. Eg. if I want to retrive a password from auth-source, it might be that no entry exists, or that the entry has no password entry. In that case I do: (if-let* ((auth (auth-source-search :host "domain.org" :create t)) (func (plist-get (car auth) :secret)) (pass (funcall func))) (use-to-login-to-some-service pass) (user-error "Cannot find password"))