How do I create a multilingual application?

One simple way for one program to use the output of another is to make them read and share specific data structures. If C is a common language you're working with, check out C bindings for other languages. It allows for creating efficient libraries that can be utilized in languages like Python, similar to how NumPy operates.

You can also link languages like C and C++ or run Python code in a C file using python.h. Any compiled language can interact in some way with C. If you're looking to create a multilingual app, think about what specific functionalities you want and try to incorporate languages that play well together for your use case.

If you're referring to output in different human languages, that’s called internationalization (or i18n for short). This involves defining all the output of your program in multiple languages and using a lookup system based on the current language. Localization (l10n) comes into play when you format things according to local conventions, like date formats or number styles. It's a whole topic you can explore further!

To clarify, are you referring to using multiple programming languages? Typically, web apps employ one language on the backend, like Python or PHP, and another on the frontend, usually JavaScript. You’d build your app with a backend framework and serve the JavaScript files as static assets. Just so you know, if you're thinking about using multiple backend languages, that can lead to more complex architectures like microservices, which might be a lot to tackle as a beginner.

It really depends on your goals! Sometimes, one language is embedded in another, like how Lua can be used. Other times, they operate separately but connect through a "translation layer" or bindings. Some languages can directly call each other, such as Kotlin with Java or Elixir with Erlang. You could also structure your repo to have the frontend and backend communicate over HTTP. So, the way languages work together depends largely on their purpose.