ruby-on-rails - 如何将 split 与存储在变量中的正则表达式一起使用？

Question

在 Ruby 中，我可以这样拆分吗？

my_string = "/(ice cold)|cold/"

"It is ice cold outside.".split(my_string)
#=> ["It is ", " outside"]

"It is cold outside.".split(my_string)
#=> ["It is ", " outside"]

2) 获得与上面相同的输出的正则表达式应该是什么？

谢谢!

Answer 1

split_pattern =/ice cold|cold/ 将匹配 'ice cold' 和 'cold'

我省略了 ice cold 周围的 ()，因为它不会拆分并从数组中删除“ice cold”字符串。省略它会。

s1 = "it is ice cold outside"
s1.split(split_pattern)
#=> ["it is ", " outside"]

s2 = "it is cold outside"
s2.split(split_pattern)
#=> ["it is ", " outside"]