This is the most misleading article I've read in a while.

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First off, Rust won hands down. End of discussion. Using optimization is completely valid because that is how Rust is designed to work. During development you do not optimize your Rust code so you can take advantage of faster compile times. This is why many developers choose Rust over C++. You only optimize when you are ready to build for release.

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Second, you are comparing Node and WASM which is biased because Node does not run in the browser. You should really be comparing WASM to vanilla JS.

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Third, how about showing some code? How can you back up any of these claims without showing code? It seems you are a JS advocate, so my initial assumption is you do not have experience writing in other language. If you provided code you could prove me wrong.

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Conclusion. Read your conclusion. You have no idea what you're talking about.