Re: Function passing flag

[goncholden]

------- Original Message -------

On Wednesday, March 9th, 2022 at 7:14 AM, Emanuel Berg via Users list for the 
GNU Emacs text editor <help-gnu-emacs@gnu.org> wrote:

> goncholden wrote:
>
> > Want to use an if-then conditional, but based on a parameter
> >
> > passed to the function as argument.
>
> Sure, do it ...

How does one do it with an optional argument?  Where can I read about this?

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