Remove duplicate elements from array in Ruby
I have a Ruby array which contains duplicate elements.
array = [1,2,2,1,4,4,5,6,7,8,5,6]
How can I remove all the duplicate elements from this array while retaining all unique elements without using for-loops and iteration?
Solution 1:
array = array.uniq
uniq removes all duplicate elements and retains all unique elements in the array.
This is one of many beauties of the Ruby language.
Solution 2:
You can return the intersection.
a = [1,1,2,3]
a & a
This will also delete duplicates.