红宝石 |可枚举的 each_cons()函数

enumerable的each_cons()是 Ruby 中的内置方法，每次从每个元素开始迭代连续的 N 个元素。如果没有给出块，则返回枚举数。

Syntax: enu.each_cons(N) { |obj| block }

Parameters: The function takes the block which is used to check the condition and N which specifies the number of consecutive elements to take.

Return Value: It returns the elements iterative consecutive for each element.

示例 1 ：

# Ruby program for each_cons method in Enumerable
  
# Initialize
enu = (1.. 5)
  
# returns each element 
enu.each_cons(2){|obj| p obj}

输出：

[1, 2]
[2, 3]
[3, 4]
[4, 5]

示例 2 ：

# Ruby program for each_cons method in Enumerable
  
# Initialize
enu = (1..10)
  
# returns each element 
enu.each_cons(4)

输出：

Enumerator: 1..10:each_cons(4)