I’m currently on my way to learn a little bit of Elixir. I like the idea of functional programming language made easy. For starters I’m doing all the tutorials I can find. My most recent tutorial was the Channels Tutorial of the Phoenix Framework. As I did the tutorial, I encountered a problem: My socket.js file was concatenated in the app.js file via Brunch.io but the promised message “Joined successfully” did not show up in the console.