Setting an instance variable from a block
- by c00lryguy
How would I achieve something like below so that when I set the s variable within the block, it also sets the @subject instance variable in my Topic class?
class Topic
def subject(&blk)
blk.call(@subject) if block_given?
@subject unless block_given?
end
end
my_topic = Topic.new
p my_topic.subject #=> nil
my_topic.subject do |s|
s = ['one', 'two', 'three']
s.pop
p s #=> ['one', 'two']
end
p my_topic.subject #=> nil... want it to be ['one, 'two']
