I'm developing a new (just for fun) programming language and I'm wondering what features I should add next? These features are already implemented:

- Printing text
- Variables
- user-input
- Datatype conversion (String, Int, Float, Bool, List, Dictionary)
- lists/arrays
- dictionaries
- Sorting
- Shuffling
- random numbers & choices
- Math stuff like: log, abs, floor, ceiling, sin, etc...
- Time & Date
- Working with files
- If-else statements
- Ternary operators
- Loops (for & while)
- Functions
- Classes
- Error handling
- Importing libraries & other scripts
- Arrow/callback functions
- Escaping (\)

is there anything you often use missing?

x = 10
while (x --> 0) // While X goes to Zero
{
print(x);
}
// Output: 9876543210

"Goes to" is the funniest operator, also it works in almost any language XD

And now, to nobody surprise, time to work again with Angular; all fun and games, until observables join the party.

RXJS IS RETARDED
RXJS DEVS ARE CRIMINALS
RXJS USERS ARE ACCOMPLICES

FUCK YOUR GLORIFIED EVENT EMITTER, FUCK YOUR REACTIVE PROGRAMMING PARADIGM, FUCK YOUR HALF BOTCHED ATTEMPT AT REINVENTING THE OPERATORS I GET FOR FREE FROM ANY LANGUAGE.

YOUR BEST GIFT TO THE WORLD WILL COME THE DIE YOU FINALLLY FUCKING DIE.