Walnut356

For sure, but as long as clickbait works they'll keep doing it.

To be fair, "an entire x" does have markedly different connotation than "x". The emphasis is that it's, well, the entirety of x. It's the difference between "i ate the cereal" and "i ate all the cereal".

I mean to be fair, those errors arent really meant for you (the end user) in the first place.

I feel like it's like pointers.

"Variable" refers to the label, i.e. a box that can contain anything (like *ptr is a pointer to [something we dont know anything about])

Immutable describes the contents, i.e. the stuff in the box cant change. (like int* ptr describes that the pointer points to an int)

Rust makes it very obvious that there's a difference between constants and immutable variables, mainly because constants must be compile time constants.

What do you call it when a variable cant change after its definition, but isnt guaranteed to be the same on each function call? (E.g. x is an array that's passed in, and we're just checking if element y exists)

It's not a constant, the contents of that label are "changing", but the label's contents cant be modified inside the scope of that function. So it's a variable, but immutable.