为什么结束时间没有出现？

Question

我试图创建一个接受数组并将其内容转换为字符串句子的函数。

def sentence_maker(array) 


    clone = array # making a copy of array
    array = array.drop(1) # dropping the first element
    array = array.unshift(clone[0].capitalize) # inserting a capitalized version of the first element of the clone

   array.each do |element|

       print element.to_s + ' ' # a space after each word

   end

   array = array.unshift # remove the space at the end of the last word
   array = array << '.' # inserting a period at the end of the array


end

sentence_maker(['i', 'am', 'awesome'])

我的rspec回归：

expected: "All my socks are dirty."
            got: ["All", "my", "socks", "are", "dirty", "."]

Answer 1

您正在each循环中打印数组的元素，但您没有创建/返回新的String。

清洁方法如下：

array = ['i', 'am', 'awesome']
array[0] = array[0].capitalize
array.join(" ").concat(".") # => "I am awesome."