ruby - 如何让用户输入并检查数组中的项目？

Question

我希望用户输入他们的 mustache 样式，然后我将根据 mustache 样式数组中的 mustache 列表检查它。这是我想做的额外事情，但我不确定如何解决。我遇到的唯一接近它的东西是 (include?)但我想要:

(数组名).include? (用户输入的值)

require_relative 'list_of'
require_relative 'error'


#User inputs a value
def get_beard
    puts "What style of beard do you have?"
    beard = gets
    if check_beard_ok?(beard)
        then no_problem(beard) end  
end

#Value passed to check length doesn't exceed 25 letters
def check_beard_ok?(beard)

    # while beard.length < 25
        # beard.in?(beard_style)
    # end
end


#The value is printed here without any errors occuring
def no_problem(beard)
    puts "\nYou have a " + beard
    puts "\nThere are other beards that you could try like..."
    list_of
end

get_beard

Answer 1

看看这个http://www.ruby-doc.org/core-1.9.3/Array.html#method-i-include-3F

你可以做到

breads = [ "Banana bread", "Beer bread", "Pumpernickel" ]
  breads_selected = [ "Banana bread"]
  if breads.include?(breads_selected) 
    # this is true
  end
  unless  breads.include?(breads_selected) 
    # this is false
  end