Ruby Array delete_at()用法及代码示例

Array＃delete_at()：delete_at()是一个Array类方法，它删除上述索引处的数组元素。

用法： Array.delete_at()

参数：  index - value at specific index value to delete

返回： deleted element, nil - if the index value is out of range

代码＃1：delete_at()方法示例

# Ruby code for delete_at() method 
  
# declaring array 
a = [18, 22, 33, nil, 5, 6] 
  
# declaring array 
b = [1, 4, 1, 1, 88, 9] 
  
# declaring array 
c = [18, 22, nil, nil, 50, 6] 
  
# delete 
puts "delete:#{a.delete_at(5)}\n\n"
  
# delete 
# prinitng if no such element is found 
puts "delete:#{b.delete_at(0)}\n\n"
  
# delete 
puts "delete:#{c.delete_at(20)}\n\n"

输出：

delete:6

delete:1

delete:

代码2：delete_at()方法示例

# Ruby code for delete_at() method 
  
# declaring array 
a = ["abc", "nil", "dog"] 
  
# declaring array 
b = ["cow", nil, "dog"] 
  
# declaring array 
c = ["cat", nil, nil] 
  
# delete 
puts "delete:#{a.delete_at(1)}\n\n"
  
# delete 
# prinitng if no such element is found 
puts "delete:#{b.delete_at(10)}\n\n"
  
# delete 
puts "delete:#{c.delete_at(0)}\n\n"

输出：

delete:nil

delete:

delete:cat

相关用法

注：本文由纯净天空筛选整理自mayank5326大神的英文原创作品 Ruby | Array delete_at() operation。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。