Programming Languages

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This is the current Lemmy equivalent of https://www.reddit.com/r/ProgrammingLanguages/.

The content and rules are the same here as they are over there. Taken directly from the /r/ProgrammingLanguages overview:

This community is dedicated to the theory, design and implementation of programming languages.

Be nice to each other. Flame wars and rants are not welcomed. Please also put some effort into your post.

This isn't the right place to ask questions such as "What language should I use for X", "what language should I learn", and "what's your favorite language". Such questions should be posted in /c/learn_programming or /c/programming.

This is the right place for posts like the following:

"Check out this new language I've been working on!"
"Here's a blog post on how I implemented static type checking into this compiler"
"I want to write a compiler, where do I start?"
"How does the Java compiler work? How does it handle forward declarations/imports/targeting multiple platforms/?"
"How should I test my compiler? How are other compilers and interpreters like gcc, Java, and python tested?"
"What are the pros/cons of ?"
"Compare and contrast vs. "
"Confused about the semantics of this language"
"Proceedings from PLDI / OOPSLA / ICFP / "

See /r/ProgrammingLanguages for specific examples

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which languages have a REPL and Type Annotation? (lemmy.blahaj.zone)

submitted 2 weeks ago by jh29a@lemmy.blahaj.zone to c/programming_languages@programming.dev

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(as an interested university student:) From Programming at a small scale in Javascript and Logo¹, I have gathered that not knowing what type something is can be annoying. They also have REPLs, which is pretty nice. From various blog posts and debugging Rust programs, I have learned that not having a REPL can be annoying. Are there languages that have both?

(¹ Logo is a "lisp" with omitable parentheses, where these also don't define runtime-mutable s-expressions, lists are in brackets, and also Logo doesn't have structs, giving it bad maintainability outside of not having Type Annotation too)

Candidates

C# : Does it have a repl?
Java in BlueJ somehow
sometimes people just put Lisp or Lua in their C/Rust++ program (emacs, shenzhen I/O(game)), this accomplishes a similar task of making some debugging or scripting code faster to compile/interpret, but slower to run

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[–] Octorine@midwest.social 7 points 2 weeks ago

Haskell is typed and has a repl.

[–] CameronDev@programming.dev 2 points 2 weeks ago

Rust has a repl: https://github.com/evcxr/evcxr

[–] leftzero@lemmy.dbzer0.com 1 points 2 weeks ago

C# : Does it have a repl?

As a procedural language (though it's becoming more and more functional-like with each release) C# isn't exactly designed to work with a REPL, but I think Visual Studio (the IDE, not the text editor) comes with an immediate window that works as one, and a quick internet search finds many third party ones, like .NET fiddle for the web, or CSharpRepl for the command line.

[–] JackbyDev@programming.dev 1 points 2 weeks ago

Java has JShell. It comes with the JDK. https://docs.oracle.com/en/java/javase/21/jshell/introduction-jshell.html