November 02, 2023

Understanding Elixir's For, Map, and Reduce Functions

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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.

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