在 Ruby 中自动创建中间层的 Hashtable
October 13, 2020
所有中间层的 hashtable 都会魔法般地自动创建出来
def autovivifying_hash
Hash.new {|ht,k| ht[k] = autovivifying_hash}
end
用法
response_builder = autovivifying_hash
response_builder['payment']['status'] = 'OK'
response_builder # => {"payment"=>{"status"=>"OK"}