search(id, key)
public
Searches key in id list. The result is returned or
yielded if a block is given. If it isn’t found, nil is returned.
# File lib/optparse.rb, line 604
def search(id, key)
if list = __send__(id)
val = list.fetch(key) {return nil}
block_given? ? yield(val) : val
end
end
