Because it was initially supported and never removed: It’s more like we never forbade shadowing, since it just fell out of the implementation of the compiler. As I recall, Graydon floated the idea of forbidding shadowing, but I stuck up for the feature, nobody else really cared, and so it stayed. – pcwalton See also: … Read more
Reactive Programming is a form of Dataflow programming only. But its also a paradigm which is oriented around propagation of changes along with data flows Like a example given on Wiki Page a:=b+c would mean that a is being assigned the result of b + c, in the instant the expression is evaluated, and later, … Read more
The word pure has different meanings in different contexts. Functional Programming When people talk about Haskell being a pure language, they mean that it has referential transparency. That is, you can replace any expression with its value without changing the meaning of the program. For example, in Haskell: square :: Int -> Int square x … Read more
IMHO both are really good languages but with respect to paradigms, Scala does OO better than Frege but Frege does functional better than Scala. With respect to differences, it comes down to mostly Haskell vs Scala since Frege is (or almost, see differences between Haskell and Frege here) Haskell for the JVM. Frege’s type inference … Read more
There’s two very different definitions of what “functional programming” means. You can kind-of do the one in Ruby, but you cannot do the other. Those two definitions are: programming with first-class functions and programming with mathematical functions You can kind-of program with first-class functions in Ruby. It has support for first-class functions. In fact, it … Read more
Python supports AOP by letting you dynamically modify its classes at runtime (which in Python is typically called monkeypatching rather than AOP). Here are some of my AOP use cases: I have a website in which every page is generated by a Python function. I’d like to take a class and make all of the … Read more
I have looked at F#, doing low level tutorials, so my knowledge of it is very limited. However, it was apparent to me that its style was essentially functional, with OO being more like an add on — much more of an ADT + module system than true OO. The feeling I get can be … Read more
1. Have you used FBP for a real project? We’ve designed and implemented a DF server for our automation project (dispatcher, component iterface, a bunch of components, DF language, DF compiler, UI). It is written in bare C++, and runs on several Unix-like systems (Linux x86, MIPS, avr32 etc., Mac OSX). It lacks several features, … Read more