将未格式化的对象字符串转换为数组

Question

我只想转换一个这样的字符串：

str = "tree dog orange music apple"

进入这样的数组：

arr = ["tree", "dog", "orange", "music", "apple"]

我尝试沿着这样的道路前行，然后才意识到这是一个死胡同：

str = "tree dog orange music apple"
# => "tree dog orange music apple"
str.gsub!(" ", ", ")
# => "tree, dog, orange, music, apple"
arr = str.to_a
# ["tree, dog, orange, music, apple"]

非常感谢任何帮助。谢谢！

Answer 1

String split方法可以很好地完成：

str.split(' ')

Answer 2

array = str.split

Answer 3

也有潜在的兴趣：

arr = %w{tree dog orange music apple}