[Tfug] Language choices

[Tim Ottinger]

I found a good discussion of blocks and closures at
http://www.artima.com/intv/closures.html
There's a use for memoizing here:
http://www.braithwaite-lee.com/tips/closures.html
thrice_with_local in an example in
http://innig.net/software/ruby/closures-in-ruby.rb
as does:

def save_for_later(&b)
    @saved = b  # Note: no ampersand! This turns a block into a
closure of sorts.
end

save_for_later { puts "Hello!" }    # <----<<<<   Look here! Just like
"synchronized"!!
puts "Deferred execution of a block:"
@saved.call
@saved.call