Erlang (programming language)
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Erlang (programming language)
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| Paradigms | Multi-paradigm: concurrent, functional |
|---|---|
| Designed by | Joe ArmstrongRobert VirdingMike Williams |
| Developer | Ericsson |
| First appeared | 1986; 34 years ago |
| Stable release | 23[1] / 13 May 2020; 43 days ago |
| Typing discipline | Dynamic, strong |
| License | Apache License 2.0 |
| Filename extensions | .erl, .hrl |
| Website | www.erlang.org |
| Major implementations | |
| Erlang | |
| Influenced by | |
| Lisp, PLEX,[2] Prolog, Smalltalk | |
| Influenced | |
| Akka, Clojure[citation needed], Dart, Elixir, F#, Opa, Oz, Reia, Rust, Scala | |
| Erlang Programming at Wikibooks |
Erlang (/ˈɜːrlæŋ/ UR-lang) is a general-purpose, concurrent, functional programming language, and a garbage-collected runtime system. The term Erlang is used interchangeably with Erlang/OTP, or Open Telecom Platform (OTP), which consists of the Erlang runtime system, several ready-to-use components (OTP) mainly written in Erlang, and a set of design principles for Erlang programs.[3]
The Erlang runtime system is designed for systems with these traits:
- Distributed
- Fault-tolerant
- Soft real-time
- Highly available, non-stop applications
- Hot swapping, where code can be changed without stopping a system.[4]
The Erlang programming language has immutable data, pattern matching, and functional programming.[5] The sequential subset of the Erlang language supports eager evaluation, single assignment, and dynamic typing.
It was originally proprietary software within Ericsson, developed by Joe Armstrong, Robert Virding, and Mike Williams in 1986,[6] but was released as free and open-source software in 1998.[7][8] Erlang/OTP is supported and maintained by the Open Telecom Platform (OTP) product unit at Ericsson.
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