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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