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Ruby Array uniq!()用法及代码示例


Array#uniq!():uniq!()是一个Array类方法,它从数组中删除重复的元素,并且仅在数组中存在重复的元素时才返回。

用法:Array.uniq!()

参数:数组


返回:从数组中删除重复的元素。

范例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"

输出:

uniq!() method form:

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

uniq!() method form:

范例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"

输出:

uniq!() method form:

uniq!() method form:

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



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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 uniq!() function。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。