Ruby/Hash/Print Hash
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Версия от 17:10, 26 мая 2010; (Обсуждение)
Содержание |
Print a hash with PP module
require "pp" h = {} h[:name] = "Robert" h[:nickname] = "Bob" h[:age] = 43 h[:email_addresses] = {:home => "bob@example.ru", :work => "robert@example.ru"} pp h[:email_addresses] # {:home=>"bob@example.ru", :work=>"robert@example.ru"} pp h
Printing a Hash
h = {} h[:name] = "Robert" h[:nickname] = "Bob" h[:age] = 43 h[:email_addresses] = {:home => "bob@example.ru", :work => "robert@example.ru"} puts h puts h[:email_addresses] p h[:email_addresses] p h
Print out a nested hash
require "pp" h = {} h[:name] = "Robert" h[:nickname] = "Bob" h[:age] = 43 h[:email_addresses] = {:home => "bob@example.ru", :work => "robert@example.ru"} PP::pp(h, $stderr, 50)
using puts on a hash in Ruby doesn"t result in as nice a display as it does for arrays
pizza = {"first_topping" => "pepperoni", "second_topping" => "sausage"} puts pizza p pizza
