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Here is a comprehensive summary of the Erlang programming language in MediaWiki syntax, complete with section headings, URLs to the GitHub repository, official documentation, the official website, and five code examples.
Erlang is a concurrent, functional programming language designed for building scalable and maintainable applications, especially suited for concurrent systems. Developed by Ericsson in the mid-1980s, it was originally created to improve the development of telecommunication systems but has since found widespread use in various domains like banking, ecommerce, and instant messaging.
The language is designed around a lightweight process model, error handling mechanisms, and dynamic typing. Its concurrency model, based on the actor model, allows processes to communicate through message passing, making it highly effective for parallel programming.
Erlang's concurrency model is one of its defining features. It enables the creation of thousands of lightweight processes within the Erlang virtual machine (VM), facilitating the development of high-performance, concurrent applications with ease.
Erlang is renowned for its fault tolerance. The language's approach to error handling and its “let it crash” philosophy allow developers to build robust systems that can recover from failures automatically, ensuring system reliability.
The syntax of Erlang is distinctive and tailored to its functional and concurrent programming paradigms. It emphasizes pattern matching, recursion, and higher-order functions, offering a different approach compared to imperative programming languages.
The Open Telecom Platform (OTP) is a set of Erlang libraries and design principles providing middleware to develop complex systems. It includes tools for building servers, supervising trees of workers, and dynamically upgrading running systems.
Erlang excels in distributed systems. Its built-in support for networking and distribution allows developers to write systems that can be distributed over multiple nodes with little to no modification to the code.
While Erlang is not known for computational speed, its performance in terms of concurrency, fault tolerance, and system responsiveness is exceptional, especially in networked and distributed environments.
The Erlang ecosystem includes a variety of tools, libraries, and frameworks that extend its capabilities, supported by an active and engaged community of developers who contribute to its growth and development.
Erlang is used in numerous high-profile applications, from telecommunications systems to database servers and web applications, exemplifying its versatility and reliability in production environments.
For new developers, there are many resources available to learn Erlang, including official tutorials, books, online courses, and community forums, making it accessible to start with Erlang programming.
Erlang can be installed on various operating systems, including Windows, macOS, and Linux, with binaries available on its official website or through package managers like Homebrew and apt.
The Erlang source code and its contributions are available on GitHub, offering a resource for developers to explore its internals or contribute to its development. s://github.com/erlang/otp(https://github.com/erlang/otp)
Comprehensive documentation for Erlang is available, detailing its syntax, modules, and OTP principles, serving as an invaluable resource for developers. s://www.erlang.org/docs(https://www.erlang.org/docs)
The official website for Erlang provides downloads, documentation, and the latest news regarding the language and its development. s://www.erlang.org/(https://www.erlang.org/)
Erlang ```erlang -module(hello). -export([world/0]).
world() →
io:fwrite("Hello, world!\n").
```
Erlang ```erlang -module(factorial). -export([fact/1]).
fact(0) → 1; fact(N) when N > 0 → N * fact(N-1). ```
Erlang ```erlang -module(pingpong). -export([start/0, ping/0, pong/0]).
start() →
PongPid = spawn(?MODULE, pong, []), spawn(?MODULE, ping, [PongPid]).
ping(PongPid) →
PongPid ! ping,
receive
pong ->
io:fwrite("Ping received pong\n")
end,
ping(PongPid).
pong() →
receive
ping ->
io:fwrite("Pong received ping\n"),
self() ! pong
end,
pong().
```
Erlang ```erlang -module(listcomp). -export([squares/1]).
squares(N) →
[X*X || X <- lists:seq(1, N)].```
Erlang ```erlang -module(mapfunc). -export([map/2]).
map(F, List) →
[F(X) || X <- List].```
These paragraphs and examples provide a detailed overview of Erlang, covering its history, design philosophy, key features, and practical applications, alongside essential resources for those interested in diving deeper into Erlang programming.
Erlang ( UR-lang) is a general-purpose, concurrent, functional high-level 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.
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.
The Erlang programming language has immutable data, pattern matching, and functional programming. The sequential subset of the Erlang language supports eager evaluation, single assignment, and dynamic typing.
A normal Erlang application is built out of hundreds of small Erlang processes.
It was originally proprietary software within Ericsson, developed by Joe Armstrong, Robert Virding, and Mike Williams in 1986, but was released as free and open-source software in 1998. Erlang/OTP is supported and maintained by the Open Telecom Platform (OTP) product unit at Ericsson.
Cloud Monk recommends the following YouTube video:
Erlang: Erlang Fundamentals, Erlang Inventor: Erlang Language Designer: Joe Armstrong in 1986; Erlang DevOps - Erlang SRE, Cloud Native Erlang - Erlang on Kubernetes - Erlang on AWS - Erlang on Azure - Erlang on GCP), Erlang Microservices, Erlang Containerization (Erlang Docker - Erlang on Docker Hub), Serverless Erlang, Erlang Data Science - Erlang DataOps - Erlang and Databases (Erlang ORM), Erlang ML - Erlang DL, Functional Erlang (1. Erlang Immutability, 2. Erlang Purity - Erlang No Side-Effects, 3. Erlang First-Class Functions - Erlang Higher-Order Functions, Erlang Lambdas - Erlang Anonymous Functions - Erlang Closures, Erlang Lazy Evaluation, 4. Erlang Recursion), Reactive Erlang), Erlang Concurrency - Erlang Parallel Programming - Async Erlang, Erlang Networking, Erlang Security - Erlang DevSecOps - Erlang OAuth, Erlang Memory Allocation (Erlang Heap - Erlang Stack - Erlang Garbage Collection), Erlang CI/CD - Erlang Dependency Management - Erlang DI - Erlang IoC - Erlang Build Pipeline, Erlang Automation - Erlang Scripting, Erlang Package Managers, Erlang Modules - Erlang Packages, Erlang Installation (Erlang Windows - Chocolatey Erlang, Erlang macOS - Homebrew Erlang, Erlang on Linux), Erlang Configuration, Erlang Observability (Erlang Monitoring, Erlang Performance - Erlang Logging), Erlang Language Spec - Erlang RFCs - Erlang Roadmap, Erlang Keywords, Erlang Data Structures - Erlang Algorithms, Erlang Syntax, Erlang OOP (1. Erlang Encapsulation - 2. Erlang Inheritance - 3. Erlang Polymorphism - 4. Erlang Abstraction), Erlang Design Patterns - Erlang Best Practices - Erlang Style Guide - Clean Erlang - Erlang BDD, Erlang Generics, Erlang I/O, Erlang Serialization - Erlang Deserialization, Erlang APIs, Erlang REST - Erlang JSON - Erlang GraphQL, Erlang gRPC, Erlang Virtualization, Erlang Development Tools: Erlang SDK, Erlang Compiler - Erlang Transpiler, Erlang Interpreter - Erlang REPL, Erlang IDEs (JetBrains Erlang, Erlang Visual Studio Code), Erlang Linter, Erlang Community - Erlangaceans - Erlang User, Erlang Standard Library - Erlang Libraries - Erlang Frameworks, Erlang Testing - Erlang TDD, Erlang History, Erlang Research, Erlang Topics, Erlang Uses - List of Erlang Software - Written in Erlang - Erlang Popularity, Erlang Bibliography - Erlang Courses, Erlang Glossary - Erlang Official Glossary, Erlang GitHub, Awesome Erlang. (navbar_erlang - see also navbar_erlang_versions, navbar_erlang_standard_library, navbar_erlang_libraries, navbar_erlang_reserved_words, navbar_erlang_functional, navbar_erlang_concurrency, navbar_elixir)
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