Add a language to a polyglot
codegolf.stackexchange.com
This is an answer-chaining challenge in which each answer builds on the previous answer. I recommend sorting the thread by "oldest" in order to be sure about the order in which the posts ...

This entire 12 page thread was one hell of a journey. And language 340 was added just a few days ago, so it’s still active!

    • down daemon
      4•2 years ago

      yeah what the fuck? can someone smarter than me chime in?

      • Marxism-Fennekinism
        4•2 years ago

        Basically, clever use of syntax so the programming can be run as more than one language.

        As a basic example, consider that the # symbol means a preprocessor statement in C, but a comment in Python. You can take advantage of this by writing a Python program, and then using the preprocessor to redefine the Python parts to C code. When executed in Python, all the preprocessor statements will be ignored, and when executed in C, the redefines turn the Python code into C code.

        Or as an even more basic example, print("Hello world!") is valid in more than one language. So it’s already a polyglot.