红宝石 |数组 rassoc() 操作

Array#rassoc() : rassoc()是一个 Array 类方法，它通过数组搜索元素。

Syntax:  Array.rassoc()

Parameter: 
- Arrays for finding elements. 
- elements to detect

Return:  Array after adding the elements at the end.

代码 #1：rassoc() 方法的示例

Ruby

# Ruby code for rassoc() method
  
# declaring array
a = [18, 22, 33, 4, 5, 6]
  
# declaring array
b = [5, 4, 22, 1, 88, 9]
  
# declaring array
c = [18, 22, 33, 40, 50, 16]
 
ar = [a, b, c]
 
# searching for an element
puts "check : #{ar.rassoc(4)}\n\n"
 
puts "check : #{ar.rassoc(22)}\n\n"

输出 ：

check : [5, 4, 22, 1, 88, 9]

check : [18, 22, 33, 4, 5, 6]

代码 #2：rassoc() 方法的示例

红宝石

# Ruby code for rassoc() method
  
# declaring array
a = ["abc", "xyz", "dog"]
  
# declaring array
b = ["cow", "cat", "dog"]
  
# declaring array
c = ["cat", "1", "dog"]
 
ar = [a, b, c]
 
 
# searching for an element
puts "check : #{ar.rassoc("xyz")}\n\n"
 
puts "check : #{ar.rassoc("1")}\n\n"

输出 ：

check : ["abc", "xyz", "dog"]

check : ["cat", "1", "dog"]