Isogram

Welcome to Isogram on Exercism's JavaScript 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 & 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

Contributed to by

• @amscotti
• @ankorGH
• @matthewmorgan
• @ovidiu141
• @PakkuDon
• @rchavarria
• @serixscorpio
• @SleeplessByte

Based on

Wikipedia - https://en.wikipedia.org/wiki/Isogram