Passing multiple code blocks as arguments in Ruby
You can't pass multiple blocks, per se, but you can pass multiple procs or lambdas:
Using 1.9 syntax:
opportunity ->{ @some_array.empty? }, ->{ @some_other_array.empty? }
and in the method itself:
def opportunity(lambda1, lambda2)
if lambda1.()
@opportunities += 1
end
if lambda2.()
@performances += 1
end
end