Iterating through a list in pairs

Sometimes, it is useful to be able to take a list of things, and traverse it in pairs.

For an example, if you had the list [1, 2, 3, 4], traversing it in pairs would result in the first iteration getting [1, 2], then [2, 3], and finally[3, 4].

Setting MySQL variables through Ecto in Phoenix

There are situations when you need to change the default limits that MySQL ships with by default. For the most part, you can do this directly through the MySQL client by modifying the appropriate variables. However, when interacting with the…

Pattern matching in Elixir

Pattern matching is an integral feature of functional programming and gives us a way to compare data against certain patterns. It can be used to assign values to variables and to control the flow of the code. Since Elixir is a functional language, it natively implements this…

TIL: GenServer’s init/1 in Elixir

Today I’ve learned, that you can return timeout as part of init call response to let theGenServer know how long to wait for a reply. If no reply is received within the specified time, the function call fails and the caller exits.