Re: Generality of defvar

[carlmarcos]

Jul 27, 2022, 04:57 by yuri.v.khan@gmail.com:

> On Wed, 27 Jul 2022 at 06:17, Emanuel Berg <incal@dataswamp.org> wrote:
>
>> For practical reasons it can be better to do
>>
>> (defvar var-name)
>> (setq var-name 'var-value)
>>
>> instead because if you do something with that and want to
>> reset it, it's enough to evaluate the second line, whereas if
>> you just have the first line you tend to evaluate that one and
>> if/because the variable is already set at that point then
>> nothing will happen ...
>>
>
> Yes, but you can press C-M-x on a (defvar var-name 'var-value) and it
> will get re-set to the new value even if the variable is already
> defined.
>
So I can keep it (defvar var-name t) or (defvar var-name nil)