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== Elixir Enumerables == [[File:ElixirLogo.png|thumb|right|The Elixir logo]] '''Elixir Enumerables''' are a powerful feature of the [[Elixir (programming language)|Elixir programming language]]. Enumerables provide a set of functions that allow you to work with collections in a flexible and efficient manner. This page explores the key features and functionalities of enumerables in Elixir. == Overview == Elixir provides a wide range of enumerable functions that allow you to perform various operations on collections, such as maps, lists, ranges, and others. These functions are defined in the `Enum` module, which is included in the Elixir standard library. Enumerables in Elixir are inspired by functional programming principles, focusing on immutability and easy composition. They allow you to manipulate and transform collections using a declarative and expressive syntax. == Key Functions == Elixir provides a rich set of functions for working with enumerables. Some of the most commonly used functions include: * `map/2`: Transforms each element of an enumerable using a given function. * `filter/2`: Filters an enumerable based on a given predicate function. * `reduce/3`: Combines all elements of an enumerable into a single value using a given function. * `sort/2`: Sorts the elements of an enumerable based on a given comparison function. * `take/2`: Returns a specified number of elements from the beginning of an enumerable. * `drop/2`: Returns an enumerable with a specified number of elements removed from the beginning. * `find/2`: Finds the first element in an enumerable that matches a given predicate function. These functions and many others provide a solid foundation for manipulating and transforming enumerables in Elixir. == Example Usage == Here's an example that demonstrates the usage of some essential enumerable functions in Elixir: ```elixir numbers = [1, 2, 3, 4, 5] squared_numbers = Enum.map(numbers, fn x -> x * x end) even_numbers = Enum.filter(squared_numbers, fn x -> rem(x, 2) == 0 end) sum_of_numbers = Enum.reduce(even_numbers, 0, fn x, acc -> x + acc end) IO.puts("Sum of even squared numbers: " <> sum_of_numbers) ``` In this example, we start with a list of numbers, square each number, filter out the even numbers, and finally calculate their sum. The result is then printed to the console. == Conclusion == Elixir Enumerables provide a powerful set of functions that enable you to manipulate and transform collections with ease. By leveraging the functional programming principles, Elixir offers a declarative and expressive way of working with enumerables. The rich set of available functions allows you to perform various operations efficiently. Understanding and utilizing these functions effectively will empower you to write clean and concise code when dealing with collections in Elixir. == See Also == * [[Elixir (programming language)|Elixir Programming Language]] * [[Elixir (programming language)|Elixir]] * [[Elixir Maps]] * [[Elixir Lists]] * [[Elixir Ranges]] * [[Elixir Pattern Matching]] * [[Elixir Recursion]] * [[Elixir Modules and Functions]] * [[Elixir Standard Library]] [[Category:Elixir programming language]] [[Category:Functional programming]] [[Category:Computing terminologies]]
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