Octal Calculator

UNIX Octal Notation

I received a take-home assignment from a recruiter and part of the assignment tested my knowledge on UNIX permissions. I decided to test myself and see how fast I could write a small React app which simply calculates the octal value of the permissions.

Try it here

The purpose of this project was mainly to test my speed. From drawing out a diagram to completion, it took me about 5 hours to finish. Most of the techniques that I used to make this I had used before, minus css grid.

A couple of things to improve:

  • Add an animation to the digit values when they change
  • Add instructions (currently you need to already understand what R W X mean

Overall, I’m mainly happy I was able to create a simple yet powerful design using some of the design techniques I learned recently at this course in Udemy.

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