SunDi3yansyah/README.md

Created November 1, 2019 10:12

Star (0) You must be signed in to star a gist
Fork (0) You must be signed in to fork a gist

Select an option

Learn more about clone URLs
Clone this repository at <script src="https://gist.github.com/SunDi3yansyah/81dcdbbfd6ce5776796203ae9b3713c1.js"></script>
Save SunDi3yansyah/81dcdbbfd6ce5776796203ae9b3713c1 to your computer and use it in GitHub Desktop.

Download ZIP

Ruby: How to find and return a duplicate value in array?

Raw

a = ["A", "B", "C", "B", "A"]
a.detect{ |e| a.count(e) > 1 }

Ref: https://stackoverflow.com/questions/8921999

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment