Re: Closures - do you understand them well?

[Emanuel Berg]

Tassilo Horn wrote:

> (let ((i 0)
>       (m (lambda (i)
>            (lambda () i)))
>       funs)
>   (while (< i 100)
>     (push (funcall m i) funs)
>     (cl-incf i))
>   (mapcar #'funcall funs))
>
> (let ((i 0)
>       funs)
>   (while (< i 100)
>     (let ((j i))
>       (push (lambda () j) funs))
>     (cl-incf i))
>   (mapcar #'funcall funs))

OK, so `lexical-binding' required, that's why they don't work
in the article buffer but suddenly work when I yank them into
an Elisp buffer ...

(setq-default lexical-binding t)

anyone?

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