[Courses] [Basics] Lesson #2: Data (II) - Variables, Lists, and a Loop

[Sonja Krause-Harder]

On Sun, Apr 07, 2002 at 03:16:22PM -0700, Liz Young wrote:
> On Saturday 06 April 2002 03:56 am, Sonja Krause-Harder wrote:
> 
> > In practice, 'foreach' is used as follows:
> > 
> > set $people {"Barney" "Fred" "Wilma" "Pebbles" "Dino"}
> > 
> > foreach person $people {
> > 
> > 	puts "Hello, $person!\n"
> > 
> > }
> 
> Is that a typo?  To test myself that I learned something in Lesson #1 - 

Yes, thanks for spotting it.

> set \$people {"Barney" "Fred" "Wilma" "Pebbles" "Dino"}
> foreach person $$people {
> 	puts "Hello, $person!\n"
> }

Or, of course, what should have been there:

set people {"Fred" "Barney" "Wilma" "Pebbles" "Dino"}
#   ^ (no "$" here, that was the typo)

foeach person $people {
	puts "Hello, $person!"
}

(Another version to put sense into that typo would have been:

set var_name people

set $var_name {"Barney" "Fred" "Wilma"}

foreach person $people {
	puts $person
}

Can you figure out what's going on here?)
 
> Huh!  It works...  :-)  Thanks,
 
I have to thank you ;-)

Sonja