Re: Looping through arguments &rest

[uzibalqa]

------- Original Message -------
On Tuesday, July 4th, 2023 at 9:40 AM, Stephen Berman <stephen.berman@gmx.net> 
wrote:


> On Mon, 03 Jul 2023 20:32:25 +0000 uzibalqa uzibalqa@proton.me wrote:
> 
> > Why does "attach" keep "chart" nil
> > 
> > (setq chart '())
> > (setq entry1 '("A" "B" "C"))
> > (setq entry2 '("D" "E" "F"))
> > 
> > (defun attach (chart &rest linsq)
> > "TODO"
> > (dolist (tbrow linsq)
> > (push tbrow chart)))
> 
> 
> The argument `chart' is local to the function` attach', changing it
> within the function has no effect on the global variable `chart'. Also,` 
> dolist' without a RESULT argument returns nil, so either add `chart' as 
> RESULT or make` chart' the last line in the function body so it will be
> the return value.
> 
> > I want to have the equivalent to
> > 
> > (push entry1 chart)
> > (push entry2 chart)
> 
> 
> Set the value of the global variable `chart' to the result of calling` 
> attach' (modified as above).
> 
> Steve Berman

Works well indeed.  Then "chart" as argument to "attach" becomes superflous, 
right ?
We can go without it.