fn greet_user(name: Option) !', nickname) Here’s an example of a function to greet someone whether or not we know their name if we had forgotten the None case in the match or tried to use name as if it was an always-present String value, the compiler would complain. Documentation, library maturity, Jobs/Engineers, Tooling support issues tend to get fixed. This prevents occurrences of the dreaded TypeError: Cannot read property 'foo' of null runtime error (or language equivalent), instead promoting it to a compile time error you can resolve before a user ever sees it. I believe rust will grow a lot in the new years. While it is conceivable that one day people will be writing the latest 3D video games in Rust an area where high performance has historically been critical it is unlikely ever to have a web framework that will go toe-to-toe with Ruby on. T-shirts, posters, stickers, home decor, and more, designed and sold by independent artists. Rust is a low-level language, best suited for systems, embedded, and other performance critical code. Like Haskell and some other modern programming languages, Rust encodes this possibility using an optional type, and the compiler requires you to handle the None case. High quality Rust Language-inspired gifts and merchandise.

This means any value may be what it says or nothing, effectively creating a second possible type for every type. Many statically-typed languages have a large asterisk next to them: they allow for the concept of NULL. This isn’t to say that all static type systems are equivalent. Statically-typed languages allow for compiler-checked constraints on the data and its behavior, alleviating cognitive overhead and misunderstandings. You only need to look at the rise of languages like TypeScript or features like Python’s type hints as people have become frustrated with the current state of dynamic typing in today’s larger codebases. The arguments between programmers who prefer dynamic versus static type systems are likely to endure for decades more, but it’s hard to argue about the benefits of static types. It’s not all roses in Rust-land, so I talk about the downsides, too.

I’ll show a sample of what Rust offers to users of other programming languages and what the current ecosystem looks like. The short answer is that Rust solves pain points present in many other languages, providing a solid step forward with a limited number of downsides. However, the roughly 97% of survey respondents who haven’t used Rust may wonder, “What’s the deal with Rust?” Rust has been Stack Overflow’s most loved language for four years in a row, indicating that many of those who have had the opportunity to use Rust have fallen in love with it.

Rust language