What type of language is Erlang?
What is Erlang? Erlang is a programming language used to build massively scalable soft real-time systems with requirements on high availability. Some of its uses are in telecoms, banking, e-commerce, computer telephony and instant messaging.
What programs are written in Erlang?
Erlang has a wonderful messaging platform called ejabberd that can be used to create large-scale chat apps. Message queue systems. RabbitMQ, an open-source message broker that implements AMQP and other protocols, is a huge success story for Erlang. Blockchains.
Is Erlang a functional language?
Erlang (/ˈɜːrlæŋ/ UR-lang) is a general-purpose, concurrent, functional programming language, and a garbage-collected runtime system.
Is Erlang a compiled language?
Normally Erlang code is compiled ahead of time into BEAM bytecode. Depending on whether Erlang was started in embedded or interactive mode, the modules are either loaded on startup, or dynamically as they are referenced. If you are building a release, you basically have to compile ahead of time.
Who uses Erlang in production?
Many companies are using Erlang in their production systems: Facebook uses Erlang to power the backend of its chat service, handling more than 100 million active users. WhatsApp uses Erlang to run messaging servers, achieving up to 2 million connected users per server.
What language is WhatsApp coded in?
ERLANG is the programming language used to code WhatsApp.
Does Facebook use Erlang?
WhatsApp used to use Erlang, not anymore. Facebook rewrote it completely in C++. https://www.quora.com/When-did-Facebook-switch-away-from-usi…
Is Erlang written in C?
Erlang VM BEAM and HiPE is written mostly in C. Linked-in drivers are written mostly in C. (They are plugged to VM and serves communication with outside world.) OTP is written in Erlang.
Is WhatsApp still in Erlang?
WhatsApp used to use Erlang, not anymore. Facebook rewrote it completely in C++. https://www.quora.com/When-did-Facebook-switch-away-from-usi… That system was the backend of the functionality currently known as Facebook Messenger, not WhatsApp.
What is Erlang programming language?
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 .
Is Erlang similar to CSP?
^ Armstrong, Joe (September 2010). “Erlang”. Communications of the ACM. 53 (9): 68–75. doi: 10.1145/1810891.1810910. Erlang is conceptually similar to the occam programming language, though it recasts the ideas of CSP in a functional framework and uses asynchronous message passing.
Is Erlang OTP open source?
Erlang (programming language) It was originally a proprietary language within Ericsson, developed by Joe Armstrong, Robert Virding and Mike Williams in 1986, but was released as open source in 1998. Erlang/OTP is supported and maintained by the OTP product unit at Ericsson .
What is dynamic software updating in Erlang?
Erlang supports language-level Dynamic Software Updating. To implement this, code is loaded and managed as “module” units; the module is a compilation unit. The system can keep two versions of a module in memory at the same time, and processes can concurrently run code from each.