ruby-on-rails - 将字符串转换为数组

Question

这是我的字符串:

 "[[question1, answer1],[queston2,ans2]]" 

我怎样才能像这样转换成数组

[[question1, answer1],[queston2,ans2]]

Answer 1

您可以使用 yaml 轻松做到这一点

require 'yaml'

str = "[[question1, answer1],[queston2,ans2]]"

# transform your string in a valid YAML-String
str.gsub!(/(\,)(\S)/, "\\1 \\2")

YAML::load(str)
# => [[question1, answer1],[queston2,ans2]]

或

YAML.load(str)