Yep. I think the names themselves are quite unambiguous to boot. A variable is something that varies in value, meaning it can be changed. A value is always that same value; 5 is never 6. Pretty straightforward if you ask me.

I'm guessing the parent is just complaining that if you are reading code very fast (particularly if you're browsing repositories on your phone) it is hard to distinguish between "val" and "var."

Let alone type them wrong on a tired night.

Thankfully that would be a simple compile-time error. The message might even be readable.

If you type var and mean val - would there be any error?

(I'm sure that this is just something you need to get used to, I'm merely trying to point out that this could be a silent typo/mistake)

In many cases, you would get warnings when accessing a var that you don't get when accessing a val. Also, IntelliJ suggests converting to val if a var is never reassigned.

As others said, not a problem if you are using an IDE (and a specific one.)

Considering who authored the language, I am not surprised at all.

In actuality it will be extremely obvious in the IDE and the developer would not make this error.

It's even worse when your primary keyboard is Dvorak!

I second this. Not to mention that you end up using val most of the time in practice, so there really is no confusion.

scala-mode2 (which isn't close to an IDE) also highlights vars in red so it's extra hard to get mixed up :)