Determine if a word or phrase is an isogram.
An isogram (also known as a "nonpattern word") is a word or phrase without a repeating letter.
Examples of isograms:
- lumberjacks
- background
- downstream
The word isograms, however, is not an isogram, because the s repeats.
Go through the setup instructions for JavaScript to install the necessary dependencies:
http://exercism.io/languages/javascript/installation
Execute the tests with:
jasmine <exercise-name>.spec.js
Replace <exercise-name> with the name of the current exercise. E.g., to
test the Hello World exercise:
jasmine hello-world.spec.js
In many test suites all but the first test have been skipped.
Once you get a test passing, you can unskip the next one by
changing xit to it.
Wikipedia https://en.wikipedia.org/wiki/Isogram
It's possible to submit an incomplete solution so you can see how others have completed the exercise.