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Ruby Array uniq!()用法及代碼示例


Array#uniq!():uniq!()是一個Array類方法,它從數組中刪除重複的元素,並且僅在數組中存在重複的元素時才返回。

用法:Array.uniq!()

參數:數組


返回:從數組中刪除重複的元素。

範例1:

# Ruby code for uniq!() 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] 
  
# uniq! method example 
puts "uniq!() method form:#{a.uniq!()}\n\n"
  
puts "uniq!() method form:#{b.uniq!()}\n\n"
  
puts "uniq!() method form:#{c.uniq!()}\n\n"

輸出:

uniq!() method form:

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

uniq!() method form:

範例2:

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

輸出:

uniq!() method form:

uniq!() method form:

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



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