i'm glad it worked for the author, and i am sure you can achieve better performance with Rust than with NodeJS, but i'd like to discuss some of the mentioned advantages:

in general, typescript is optimized for cooperating with other javascript code, to make it easy to drop it into a javascript-based project, and also, it does not really have it's own "runtime". typescript is javascript plus types. in fact, if you want to convert from typescript to javascript, you can take a typescript-file, and just delete all the type-definitions and you get a working javascript file (there are some exceptions to this, but it generally is true). this approach has it's downsides of course, for example,when you need to interface with a javascript (not typescript) module, you can easily, but you have to know what types it expects and returns,otherwise you might get invalid structures in your code. there are things that can help you there (https://github.com/DefinitelyTyped/DefinitelyTyped), and it works quite well in practice, but there is no 100% guarantee that the types will be correct.

>> STRICT TYPING (in typescript) For example, the data might contain additional fields or even incorrect values for declared types.

- typescript is structurally typed most of time, so if you have a function that needs an `{a:string, b:string}`, and you send it an `{a:string, b:string, c:string}`, it will accept it. it's a different trade off,sometimes better, sometimes worse, compared to nominal-typing (https://en.wikipedia.org/wiki/Nominal_type_system).

- the part "even incorrect values", it should not happen in your own code. as i wrote above, i can imagine it happening when interfacing with other non-typescript code.

>> DATA VALIDATION: You have to write data validation code to ensure that you’re operating on correct data in TypeScript. You get this for free in Rust...

in typescript if you want to read,let's say JSON data,and map it to a typescript-structure, and return an error if it does not have the correct structure, you can use libraries like IO-TS (https://github.com/gcanti/io-ts/blob/master/index.md) to make that happen. i do not know how you get this "for free" in Rust, i know there are libraries like Serde (https://serde.rs/) that do it.