Ruby Array reverse!()用法及代碼示例

Array＃reverse！()：reverse！()是一個Array類方法，該方法返回就位的self

用法：Array.reverse!()

參數：數組

返回：逆向自我

範例1：

# Ruby code for reverse!() method 
  
# declaring array 
a = [18, 22, 33, nil, 5, 6] 
  
# declaring array 
b = [1, 4, 1, 1, 88, 9] 
  
# declaring array 
c = [18, 22, 50, 6] 
  
# reverse! method example 
puts "reverse!() method form:#{a.reverse!()}\n\n"
  
puts "reverse!() method form:#{b.reverse!()}\n\n"
  
puts "reverse!() method form:#{c.reverse!()}\n\n"

輸出：

reverse!() method form:[6, 5, nil, 33, 22, 18]

reverse!() method form:[9, 88, 1, 1, 4, 1]

reverse!() method form:[6, 50, 22, 18]

範例2：

# Ruby code for reverse!() method 
  
# declaring array 
a = ["abc", "nil", "dog"] 
  
# declaring array 
c = ["cat", nil] 
  
# declaring array 
b = ["cow", nil, "dog"] 
  
  
# reverse! method example 
puts "reverse!() method form:#{a.reverse!()}\n\n"
  
puts "reverse!() method form:#{b.reverse!()}\n\n"
  
puts "reverse!() method form:#{c.reverse!()}\n\n"

輸出：

reverse!() method form:["dog", "nil", "abc"]

reverse!() method form:["dog", nil, "cow"]

reverse!() method form:[nil, "cat"]

相關用法

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