OpalOPAL (OPtimized Applicative Language) is a functional programming language first developed at the Technical University of Berlin.The most used programming languages Elixir Fortran Julia Vim (text … Rust Scala R PowerShell Emacs Lisp C Sharp Dart Lean (proof … CoffeeScript PHP MATLAB Erlang F Sharp C Go Java Objective-C Perl Clojure C++ Apache Groovy TypeScript Swift Lua WebAssembly