轉換未格式化的String對象到一個數組

Question

我只是想這樣一個字符串轉換：

str = "tree dog orange music apple" 

到像這樣的數組：

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

我試着下去這樣的路徑之前意識到這是一個死衚衕：

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"] 

任何幫助將不勝感激。謝謝！

Answer 1

的字符串split方法將很好地做到：

str.split(' ')

Answer 2

陣列= str.split

Answer 3

潛在感興趣的還有：

arr = %w{tree dog orange music apple}