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How to Test Shared Behavior in Elixir
Create a new mix project if you want to follow along: $ mix new calculator $ cd calculator Suppose you have a Calculator module and a sum_list function:…
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Zero to Up and Running a Rails Project only using Docker
Disclaimer: this post is based on Quickstart: Compose and Rails — Docker the main difference is that I will run everything with my own user and cache the…
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Refactoring Ruby: From Subclass to Registry
My team was given a particularly laborious task: implement responsive images throughout a legacy Rails application. Back then, the app was sending disproportionally large image files over to…
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Halving Response Times: Lessons Learned
Response times under 100 ms are capable of lightening anyone’s heart. It’s even better when you reach that milestone as a side effect of some rounds of refactoring…
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Your App Across the Globe
In 2017 world population is estimated in 7.5 billion. This number seems/looks enormous and if put in a graphic by continent one may note that more than half…
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Refatorando para JavaScript Funcional: Composição de Funções (parte 1)
If you cannot read in Portuguese, try to use the Google Translator. Each code sample here will be written in English. Feel free to translate this article and…
