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{{Short description|Programming language running on the Erlang virtual machine}}
{{Primary sources|date=June 2023}}
{{Infobox programming language
| name = Elixir
| title =
| logo = [[File:
| logo caption = Elixir
| paradigms = [[multi-paradigm programming language|multi-paradigm]]: [[functional programming|functional]], [[concurrent programming|concurrent]], [[distributed programming|distributed]], [[process-oriented programming|process-oriented]]
| typing = [[type system|dynamic]], [[strong typing|strong
| influenced = [[Gleam (programming language)|Gleam]], [[LFE (programming language)|LFE]]
| platform = [[Erlang (programming language)|Erlang]]
| license = [[Apache License 2.0]]<ref>{{cite web|url=https://github.com/elixir-lang/elixir/blob/master/LICENSE|title=elixir/LICENSE at master · elixir-lang/elixir · GitHub|work=GitHub}}</ref>
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| year = {{start date and age|2012}}
| influenced_by = [[Clojure]], [[Erlang (programming language)|Erlang]], [[Ruby (programming language)|Ruby]]
| designer =
| origin = Brazil
| latest release version = {{wikidata|property|edit|reference|P348}}
| latest release date = {{start date and age|{{wikidata|qualifier|single|P348|P577}}}}
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'''Elixir''' is a [[functional programming|functional]], [[concurrent computing|concurrent]], [[High-level programming language|high-level]] [[General-purpose programming language|general-purpose]] [[programming language]] that runs on the [[BEAM (Erlang virtual machine)|BEAM]] [[virtual machine]], which is also used to implement the [[Erlang (programming language)|Erlang]] programming language.<ref name=":0">{{Cite news|url=https://www.eliteinfoworld.com/blog/popular-programming-languages-2018/|title=Most Popular Programming Languages of 2018 - Elite Infoworld Blog|date=2018-03-30|access-date=2018-05-08|archive-date=2018-05-09|archive-url=https://web.archive.org/web/20180509080342/https://www.eliteinfoworld.com/blog/popular-programming-languages-2018/|url-status=dead}}</ref> Elixir builds on top of Erlang and shares the same abstractions for building [[Distributed computing|distributed]], [[fault-tolerant]] applications. Elixir also provides tooling and an [[extensible]] design. The latter is supported by compile-time [[metaprogramming]] with [[Macro (computer science)|macros]] and [[polymorphism (computer science)|polymorphism]] via protocols.<ref>{{cite web |url=https://elixir-lang.org|title=Elixir | work=José Valim | access-date=2013-02-17}}</ref>
The community organizes yearly events in the United States,<ref>{{Cite web|title = ElixirConf|url = http://elixirconf.com/|access-date = 2018-07-11}}</ref> Europe,<ref>{{Cite web|title = ElixirConf|url = http://elixirconf.eu/|access-date = 2018-07-11}}</ref> and Japan,<ref>{{Cite web|title = Erlang & Elixir Fest|url = https://elixir-fest.jp/|access-date = 2019-02-18}}</ref> as well as minor local events and conferences.<ref>{{Cite web|title = Elixir LDN|url = http://www.elixir.london/|access-date = 2018-07-12}}</ref><ref>{{Cite web|title = EMPEX - Empire State Elixir Conference|url = http://empex.co/|access-date = 2018-07-12}}</ref>
== History ==
José Valim
Elixir
== Versioning ==
== Features ==
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* Railway oriented programming via the <code>with</code> construct<ref>{{Cite web |last=Wlaschin |first=Scott |date=May 2013 |title=Railway Oriented Programming |url=https://fsharpforfunandprofit.com/rop/ |url-status=live |archive-url=https://web.archive.org/web/20210130221804/http://fsharpforfunandprofit.com/rop/ |archive-date=30 January 2021 |access-date=28 February 2021 |website=F# for Fun and Profit}}</ref>
* Hygienic [[metaprogramming]] by direct access to the [[abstract syntax tree]] (AST).<ref name="elixirhome" /> Libraries often implement small [[Domain-specific language|___domain-specific languages]], such as for databases or testing.
* Code execution at compile time. The Elixir compiler also runs on the
* [[Polymorphism (computer science)|Polymorphism]] via a mechanism called protocols. [[Dynamic dispatch]], as in [[Clojure]], however, without [[multiple dispatch]] because Elixir protocols dispatch on a single type.
* Support for documentation via Python-like docstrings in the [[Markdown]] formatting language<ref name="elixirhome" />
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The following examples can be run in an <code>iex</code> [[Shell (computing)|shell]] or saved in a file and run from the [[command line]] by typing <code>elixir ''<filename>''</code>.
Classic [["Hello, World!" program|Hello world]] example:
<syntaxhighlight lang="iex">
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[2, 4, 6, 8, 10]
iex> %{values: 1..5} |> Map.get(:values) |> Enum.map(& &1 * 2) |> Enum.sum()
30
</syntaxhighlight>
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other_time_consuming_action()
Task.await task
</syntaxhighlight>{{cn|date=June 2023}}
== See also ==
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* [[Concurrent computing]]
* [[Distributed computing]]
* [[Parallel computing]]
== References ==
{{Reflist|30em}}
==
* {{Cite book |author1=Simon St. Laurent |author2=J. Eisenberg |date=December 22, 2016 |title=Introducing Elixir: Getting Started in Functional Programming 2nd Edition|publisher=[[O'Reilly Media]] |isbn=978-1491956779 |language=en}}
* {{Cite book |author=Sasa Juric |date=January 12, 2019 |title=Elixir in Action 2nd Edition |publisher=[[Manning Publications]] |isbn=978-1617295027 |language=en}}
{{Programming languages}}
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