June 02, 2022

Exploring Elixir's List Comprehension Features

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Exploring Elixir's List Comprehension Features

Source: mitchellhanberg.com

Mitchell Hanberg provides an in-depth guide to Elixir's list comprehensions, a syntax for succinct and powerful transformations in Elixir. He demonstrates parallels to 'for' loops in other languages but clarifies that list comprehensions in Elixir are expressions rather than statements. This guide dives deep into the nuances of list comprehensions, from generators, filters, and options like ':uniq', ':into', and ':reduce' to chaining generators and handling non-matching lhs values. Hanberg thoroughly explains using bitstring generators- a unique feature for parsing binary data in Elixir. He also compares comprehension with other Elixir iteration and reduces mechanisms, showing the power and efficiency of comprehensions in reducing enumeration passes. In conclusion, he offers insight into the composability of list comprehensions in Elixir and even touches upon their roots in Erlang, the language from which Elixir is derived.

Explained: How Elixir and Erlang Handle Arrays Functionally

Many data structures including arrays don't translate equally from imperative to functional programming languages and there are important reasons why.

Mar 18, 2023

Implementing File Uploads in Real-time with Phoenix LiveView

The Fly.io team introduces LiveView Uploads as a solution for handling file uploads in Phoenix applications. Using LiveView, developers can achieve real-time upload progress, drag and drop functionality, and the ability to handle multiple uploads at once, all while hiding the complexity behind the scenes.

Aug 31, 2023

Implementing Unaccented Name Search in Postgres via Ecto

In this blog post by Peter Ullrich, Peter discusses the problem of efficient name search in Postgres, specifically when dealing with special symbols and accents. He proposes the use of the "unaccent" function in Postgres to treat words with and without accents equally, and also suggests adding a GIN index for faster search performance.

Aug 15, 2023