Ruby Array delete_if()用法及代碼示例

Array＃delete_if()：delete_if()是一種Array類方法，它刪除滿足塊條件的數組元素。

用法： Array.delete_if()

參數：  block - condition for deleting the elements.

返回： array after deleting the elements

代碼＃1：delete_if()方法示例

# Ruby code for delete_if() method 
  
# declaring array 
a = [18, 22, 33, 23, 5, 6] 
  
# declaring array 
b = [1, 4, 1, 1, 88, 9] 
  
# declaring array 
c = [18, 22, 12, 24, 50, 6] 
  
# delete 
puts "delete:#{a.delete_if{|x| x < 1}}\n\n"
  
# delete 
puts "delete:#{b.delete_if{|b| b==1}}\n\n"

輸出：

delete:[18, 22, 33, 23, 5, 6]

delete:[4, 88, 9]

代碼2：delete_if()方法示例

# Ruby code for delete_if() method 
  
# declaring array 
a = ["abc", "geeks", "dog"] 
  
# declaring array 
b = ["cow", "1", "dog"] 
  
  
# delete 
puts "delete:#{a.delete_if{|x| x != "dog"}}\n\n"
  
# delete 
puts "delete:#{b.delete_if{|b| b=="1"}}\n\n"

輸出：

delete:["dog"]

delete:["cow", "dog"]

相關用法

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