告诉红宝石.each循环的结尾 [英] Tell the end of a .each loop in ruby

问题描述

如果我有一个循环，例如

If i have a loop such as

users.each do |u|
  #some code
end

用户是多个用户的哈希.查看您是否位于用户哈希中的最后一个用户并且只想为该最后一个用户执行特定代码的最简单的条件逻辑是什么，例如

Where users is a hash of multiple users. What's the easiest conditional logic to see if you are on the last user in the users hash and only want to execute specific code for that last user so something like

users.each do |u|
  #code for everyone
  #conditional code for last user
    #code for the last user
  end
end

推荐答案

users.each_with_index do |u, index|
  # some code
  if index == users.size - 1
    # code for the last user
  end
end

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