MRuby Core Extensions Enumerable Methods Implementation Enumerable#drop Ruby Enumerable#drop_while Ruby Enumerable#each_cons Ruby Enumerable#each_slice Ruby Enumerable#group_by Ruby Enumerable#take Ruby Enumerable#take_while Ruby Array Methods Implementation Array::try_convert C Array#assoc C Array#rassoc C Array#at C Array#reject! Ruby Array#delete_if Ruby Array#compact! Ruby Array#compact Ruby Array#select! Ruby Array#keep_if Ruby Hash Methods Implementation Hash::try_convert C Hash#assoc C Hash#delete_if Ruby Hash#keep_if Ruby Hash#invert Ruby String Methods Implementation String::try_convert C Symbol Methods Implementation Symbol#length Ruby Symbol#size Ruby Symbol#capitalize Ruby Symbol#downcase Ruby Symbol#upcase Ruby Symbol#empty? Ruby Integer Methods Implementation Integer#denominator Ruby Integer#integer? Ruby Integer#numerator Ruby To be continue