Isogram
Welcome to Isogram on Exercism's Elixir Track.
If you need help running the tests or submitting your code, check out HELP.md.
Instructions
Determine if a word or phrase is an isogram.
An isogram (also known as a "non-pattern word") is a word or phrase without a repeating letter, however spaces and hyphens are allowed to appear multiple times.
Examples of isograms:
- lumberjacks
- background
- downstream
- six-year-old
The word isograms, however, is not an isogram, because the s repeats.
Source
Created by
- @jimmbraddock
Contributed to by
- @angelikatyborska
- @awochna
- @Cohen-Carlisle
- @devonestes
- @lpil
- @neenjaw
- @parkerl
- @sotojuan
Based on
Wikipedia - https://en.wikipedia.org/wiki/Isogram