From: sabbyxtabby@... (Sabby and Tabby)
Date: 2003-03-28T21:39:00+09:00
Subject: Re: i++

"daniel" <offstuff@aon.at> wrote:

> i=0
> arr_stuff.each {
>    |a|
>    $tk_listbox_stuff.insert( i, a.to_s)
>    i += 1
> }

Avoiding the question of i++, a common idiom (if a google search for
"ruby tklistbox" is any indication) would be:

  arr_stuff.each { |a|
    $tk_listbox_stuff.insert('end', a.to_s)
  }

But even that seems unnecessarily verbose.  According to the Perl/Tk
documentation (there doesn't seem to be any Ruby/Tk documentation,
but Programming Ruby suggests Perl/Tk as an alternative) the #insert
method should be able to insert multiple items:

  $tk_listbox_stuff.insert('end', *arr_stuff)

Note that the above is untested (no Tk here) and that it also omits
an explicit #to_s on the array elements (a peek at tk.rb shows that
Ruby objects are automatically converted to Tcl strings).

-- 
Tabby