Rust’s compiler is more picky than most, but is really impressive in how it explains the errors and advises on how to fix them. It’s a really good feature of Rust.

It usually works, but it takes a few minutes to reprocess the files if your project or solution is big.

In the JetBrains IDEs (which, relatively speaking, I like), I have to use “Invalidate caches and restart” several times a day just to get past all the incorrect error highlighting.

You should refer to Visual Studio by its full title: “Visual Studio (not responding)”.

It looks like “is-number” was never more than a few simple lines of code. It still has 68 million downloads per week.

https://www.npmjs.com/package/is-number

I checked one of our main projects at work, and it’s in there as a dependency 6 levels deep via the “sass” package.