February 8 - Manually Removing Duplicates from an Array in Ruby
Learn how to manually remove duplicates from an array in Ruby without using the uniq method.
Guide Tasks
- Read Tutorial
- Watch Guide Video
- Complete the Exercise
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Summary
Remove duplicate elements from an array in Ruby without using the
uniqmethod.
Exercise Description
Add a method to Ruby's Array class that manually iterates through a collection and removes duplicate items from the array (without using the built in uniq method).
Example
[1, 3, 4, 1, 4].remove_duplicates # [1, 3, 4]
Real World Usage
Working with collections is key for many different applications. This type of behavior is helpful when cleaning up data prior to passing it to a machine learning algorithm or rendering it to a user.