Big O Primer

Introduction Big O is all about saving time and saving space, two resources that computer algorithms consume to do repetitive jobs (like sorting strings, calculating sums, or finding primes in haystacks). Big O analysis is required when data points grow very numerous. If you need to sort thousands, millions, billions, or trillions of data points […]

Yet Another Book Binder Update

Hey! Who remembers that comic book manger app I was writing a few months ago? Not me! Actually I didn’t forget about Book Binder–I just smacked into my own limitations. I had to take a break and do a bunch of reading, learning, and experimenting. And now I’m back. Look at a what I did… […]

FizzBuzz Still Hard… and Still Useless

I hear that many of the applicants we interview still have a hard time with FizzBuzz and other simple examples of looping, testing, and printing integers. This was true in 2007 when Coding Horror wrote this a famous blog post on Fizz Buzz, true in 2010 when DanSignerman famously asked StackOverflow about it, and true […]

UITableViewController with Clouds

I wrote a tutorial that demos how to use a couple of UITableViewControllers, a segue, the Storyboard, a simple model, and as little code as possible to create an iOS app. https://github.com/jpavley/Smith You’ll find the code and a very detailed README on Github. It’s open source and I hope you find it useful.

Book Binder Update

My comic book collection iOS app continues to evolve. I continue to strip out features and focus on the core mission: Buy a comic, snap a photo, add it to your collection. With that in mind the UX now looks a lot like a photo app that has been preconfigured for storing comic book metadata. […]

Unit Tests Equal Awesome

I’m working on a hobby project iOS app that lets me track my comic book collection. I’m interested in comic books because all these super heroes from my misspent youth rule the world of popular culture. While the cool kids were playing sports and going to parties I stayed at home reading comic books. In […]

iPhone to the Max

I’m on that Apple program that where you pay for an iPhone over time and you get the opportunity to update immediately when a new model comes along, as it does every year. While this is a very good deal for Apple, almost like a subscription service, it’s a good deal for me too. I […]