ruby - 如何在数组中遍历这个数组以查看所有值是否相等？

Question

这是我的示例代码

:key1 => "a"
:key2 => "b"
:key3 => "c"
array1 = [[:key1, :key1, :key1],[:key1, :key2, :key3],[:key2, :key2, :key1]]
array1.each { |x| if x.sym_tos == "a"
                     puts "All match!"
                  else
                     puts "no match"
                  end
             }

然而，当我运行它时，我得到以下错误代码： undefined method `sym_to_s' for [:R1C1, :R1C2, :R1C3]:Array (NoMethodError)

Answer 1

你可能想说

if x.uniq.length == 1