React and Redux took the world by storm. These JavaScript libraries allow you to write applications consisting of reusable components while avoiding bugs related to side-effects. But I suspect that developers do not unit test their React/Redux code. Or at least not as much as they could. During this talk, I will showcase the unit tests we have written for our eventriX product. These tests run fast and cover the most important aspects of our client-side code running in the browser. These practical real-world examples could inspire you to write more and better unit tests for your own React/Redux application.
Hello and welcome to my talk about Covariance and Contravariance.
Now, you must be wondering “What do covariance and contravariance have to do with dogs?” The answer to that is… Nothing! Absolutely nothing. This is one of the images I got as a result for an image search for “variance”. So I thought: “Sure, why the hell not?!”
Okay, let me introduce myself.
My name is Alin and this is me facilitating the open space during one of the Bucharest Agile Meetup events.
I also organize monthly Coding Dojos.
I'm one of the co-organizers of the Bucharest Java User Group.
I am part of an awesome global team that organizes the Global Day of Coderetreat.
During working hours, I am a software developer at Mozaic Labs, building eventriX