C++17 in 2019
It's 2019 and repl.it still doesn't allow you to easily choose which, if any, version of C++ you are compiling with. What is needed to make it easy to select which version of C++ we're compiling with? sites like WandBox, GodBolt or Coliru make it very easy to choose the C++ version!
Same as RoR but for Laravel using PHP. Laravel has a REPL command already called tinker. You can call it with `php artisan tinker`. We'd love to have that accessible instead of a the standard php CLI `php -a`.
XHTML and other versions of HTML
The title explains. I would be nice to have more versions of html to use. Maybe it could just say "HTML" but when you click it lets you choose HTML 1-5 or XHTML. Thanks!
I know it would require a lot of work, but I would like to see a sort of new kind of file that users could create. For example, a user could create a new "language" file, and define the code for the language, the syntax highlighting, code-completion, REPL, icon for the language, ect. The user would now have access to using this language in their Repls, and if others wanted to use it too they could fork the "language" file. I understand that this might not be possible with repl.its current code, I just think that it would be a great addition to the program as a whole. Users could even code languages that weren't yet supported in repl.it.
Unity Game Engine
I know this one would be kind of hard, but I would just LOVE being able to code with the Unity Game Engine with languages such as C#! Please give it a thought!
MATLAB is a multi-paradigm numerical computing environment and proprietary programming language developed by MathWorks. MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages, including C, C++, C#, Java, Fortran