OpalOPAL (OPtimized Applicative Language) is a functional programming language first developed at the Technical University of Berlin.The most used programming languages WebAssembly MATLAB Lean (proof … C++ Clojure R Julia Elixir PHP Kotlin Python OCaml Perl TypeScript C Sharp Java Ruby Fortran C Go Dart Lua Emacs Lisp Smalltalk Vim (text … Rust Visual Basic … Objective-C CoffeeScript