📜  红宝石 |数组类 flatten()函数

📅  最后修改于: 2022-05-13 01:54:52.672000             🧑  作者: Mango

红宝石 |数组类 flatten()函数

flatten()是一个 Array 类方法,它返回扁平数组,即一维数组

示例 #1:

# Ruby code for flatten() method
  
# declaring array
a = [[18, 22],
    [ 33, nil, 5, 6]]
  
# declaring array
b = [[[1, 4, 1, 1, 88, 9]]]
  
  
# flatten
puts "flatten : #{a.flatten()}\n\n"
  
# flatten
puts "flatten : #{b.flatten()}\n\n"

输出 :

flatten : [18, 22, 33, nil, 5, 6]

flatten : [1, 4, 1, 1, 88, 9]

示例 #2:

# Ruby code for flatten() method
  
# declaring array
a = [["abc", "nil", ],
    ["dog"]]
  
# declaring array
b = [[[["cow", nil, "dog"]]]]
  
  
# flatten
puts "flatten : #{a.flatten()}\n\n"
  
# flatten
puts "flatten : #{b.flatten()}\n\n"

输出 :

flatten : ["abc", "nil", "dog"]

flatten : ["cow", nil, "dog"]