November 02, 2023

Understanding Elixir's For, Map, and Reduce Functions

119

clicks

Understanding Elixir's For, Map, and Reduce Functions

Source: dev.to

Functional Programming

The content is a tutorial by Adolfo Neto, aimed at clarifying the differences between 'for' loops in traditional imperative languages and the 'for' construct in Elixir, which is used as a list comprehension tool. The author points out that 'for' in Elixir is not used for iteration in the same sense as in other languages but instead is employed for creating lists based on a set of rules and generates. The article also elaborates on the use of 'map' and 'reduce' functions in Elixir, providing examples of their usage for applying functions across collections and accumulating values. The examples show how to perform various operations using Enum.map/2 and Enum.reduce/2 or Enum.reduce/3, demonstrating the efficacy of functional patterns in list manipulation. Adolfo Neto also encourages readers to consult the Elixir documentation for further exploration of these concepts.

Continue reading

Related posts

Three-Year Growth of Elixir's Nx Machine Learning Library

Sean Moriarity reflects on the growth and success of the Elixir machine learning ecosystem over the past three years. He discusses the unlikely start of the Nx project, the challenges faced, and the future of machine learning in Elixir.

Nov 08, 2023

Exploring Phoenix LiveView's Async Operations

Mark Ericksen explores how to use Phoenix LiveView's new async operations feature in his article "Abusing LiveView's new Async Assigns Feature." He discusses starting and stopping async tasks, handling success and failure states, and canceling running tasks. The article showcases the versatility and power of async operations in Phoenix LiveView.

Nov 09, 2023

Ensuring Unique Data Entries in Phoenix Applications

George Arrowsmith explains in his article "Foolproof uniqueness validations in Phoenix with Ecto" how to validate the uniqueness of data in a Phoenix app using the Ecto.Changeset module. He discusses the limitations of the validates_uniqueness_of validator in Rails and introduces the use of unsafe_validate_unique and unique_constraint functions in Ecto for a more secure and user-friendly validation process.

Nov 08, 2023

© HashMerge 2024