Ruby Language Arrays Get unique array elements
Example
In case you need to read an array elements avoiding repetitions you case use the #uniq method:
a = [1, 1, 2, 3, 4, 4, 5]
a.uniq
#=> [1, 2, 3, 4, 5]
Instead, if you want to remove all duplicated elements from an array, you may use #uniq! method:
a = [1, 1, 2, 3, 4, 4, 5]
a.uniq!
#=> [1, 2, 3, 4, 5]
While the output is the same, #uniq! also stores the new array:
a = [1, 1, 2, 3, 4, 4, 5]
a.uniq
#=> [1, 2, 3, 4, 5]
a
#=> [1, 1, 2, 3, 4, 4, 5]
a = [1, 1, 2, 3, 4, 4, 5]
a.uniq!
#=> [1, 2, 3, 4, 5]
a
#=> [1, 2, 3, 4, 5]
