红宝石 |数组 shuffle!()函数

Array#shuffle!() : shuffle!()是一个 Array 类方法，它可以将自身中的元素打乱。

Syntax: Array.shuffle!()

Parameter: Array

Return: shuffles elements in self in place.

示例 #1：

# Ruby code for shuffle!() method
  
# declaring array
a = [18, 22, 33, nil, 5, 6]
  
# declaring array
b = [1, 4, 1, 1, 88, 9]
  
# declaring array
c = [18, 22, 50, 6]
  
# shuffle! method example
puts "shuffle!() method form : #{a.shuffle!()}\n\n"
  
puts "shuffle!() method form : #{b.shuffle!()}\n\n"
  
puts "shuffle!() method form : #{c.shuffle!()}\n\n"

输出 ：

shuffle!() method form : [5, 6, 22, 33, 18, nil]

shuffle!() method form : [1, 4, 9, 1, 1, 88]

shuffle!() method form : [22, 6, 18, 50]

示例 #2：

# Ruby code for shuffle!() method
  
# declaring array
a = ["abc", "nil", "dog"]
  
# declaring array
c = ["cat", nil]
  
# declaring array
b = ["cow", nil, "dog"]
  
  
# shuffle! method example
puts "shuffle!() method form : #{a.shuffle!()}\n\n"
  
puts "shuffle!() method form : #{b.shuffle!()}\n\n"
  
puts "shuffle!() method form : #{c.shuffle!()}\n\n"

输出 ：

shuffle!() method form : ["nil", "dog", "abc"]

shuffle!() method form : ["dog", "cow", nil]

shuffle!() method form : ["cat", nil]