It's very yellow header. I agree that node is great and become very mature in the last couple of years, but it's definitely not a Swiss's army knife. Event-driven programming is a great idea for i/o bound operations which is almost all of the api's. But single execution thread and dynamic nature shoots you in the foot in case of heavy cpu bound operations. Of course you can write a c++ module for node, but either way you gonna get more suitable instrument for this (some multithreaded stuff, like go, rust, c# or java). Machine learning and data science also struggles due to lack of tooling (AFAIK every non-data-scientific language sucks besides python).
Agreed! I quite like C# with .NET core for data science as I can get it to scale nicely on Linux docker containers or Hadoop clusters.
I'm keen to try compiling C# to wasm.
I think the comparison to a swiss army knife is rather apt. It has multiple uses, but in quite many cases, it will only be a more or less poorly performing drop-in replacement for the real tools of the trade.
By the way, you can actually do multithreading in JS, in the browser either using Workers or WebGL and in node.js using childProcess.fork().
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