红宝石 |构造 to_a()函数

to_a()是 Ruby 中的一个内置方法，它返回一个包含特定结构值的数组。

Syntax: struct_name.to_a[integer]

Parameters: The function accepts an integer parameter which specifies the index of the struct value to be returned.

Return Value: It returns the value of struct. 
 

示例 1 ：

Ruby

# Ruby program for to_a  method in struct
   
# Include struct
animals = Struct.new(:name, :speciality , :found_in)
 
#initialize values
detail = animals.new("labrador", "bark" , "Newfoundland")
 
#print value 2
puts detail.to_a[2]

输出：

Newfoundland

示例 2 ：

红宝石

# Ruby program for to_a method in struct
   
# Include struct
place = Struct.new(:name, :speciality)
 
#initialize values
detail = place.new("nagpur","orange")
 
#print value 1
puts detail.to_a[1]

输出：

orange