Eli Perkins.

Written by Eli Perkins, a mobile engineer based in Denver. Say hello on Mastodon.

• Validating Relay Queries With This One Weird Trick™

  March 22, 2019

  tl;dr: Use relay --validate to catch Relay validation errors in CI.

• SE-0117, API Design, and You

  July 19, 2016

  Use composition over inheritance. Pass values into functions.

• Mocks in Swift via Protocols

  October 01, 2015

  How to use protocols to mock types in Swift to test your iOS apps without relying on Objective-C runtime hacks and swizzles.

• WWDC 2014 Predictions

  May 28, 2014

  Boy, was I wrong... maybe?

• Get Off My Lawn

  February 13, 2014

  Respect each other's opinions in the iOS community and let's focus on creating cool things with the tools we like.

• How We Learn

  February 04, 2014

  Find success by seeking to learn more, shaping one's own personal opinion, and changing one's mind.