小编Ole*_*iak的帖子

number = {:a => 1, :b => 2, :c => 3, :d => 4}

在评估某些条件时,我想删除a,b,c的键值对

When a user is created through the Keycloak admin console, is there a way to notify a user via email that a profile has been created and the user can finish registration following by a link? Currently, the user can get an email about profile being created only if after creation a password had been set for the user. And only after an initial login attempt. But for this login attempt, the user should know the password that was set.

致力于在Ruby中创建一个小命令行脚本,用户提供与餐馆相关的一些信息,并返回计算信息.

目前我有以下代码:

class Restaurant
 attr_accessor :name :type :avg_price
 def initialize(name, type, avg_price)
   @name = name
   @type = type
   @avg_price = price
 end
 end

问题1

如果我们使用attr_accessors方法声明type,和price,name 为什么Initialize方法是必要的？这是因为我们需要为其设置输入值吗？

问题2

在代码中有一个叫做RestaurantList后跟的子类< Array.这是什么功能？

代码中没有定义Array类？它是ruby中的内置类Array吗？如果是这样,它到底是做什么的？

在新版本的Chrome中找不到此复选框。谁能给它一个提示？