> Sorry, not even remotely close. I want to see some serious evidence. There was this blog post of a company trying improve their clients' webpage performance

> Sorry, not even remotely close. I want to see some serious evidence. There was this blog post of a company trying improve their clients' webpage performance by incrementally migrating them from JS to WASM/Rust: https://zaplib.com/docs/blog_post_mortem.html https://zaplib.com/docs/blog_post_mortem.html In short, their idea failed. Those rewrites did not yield the "orders of magnitude" perf improvements that they were hoping for. A quote from the article: > Rust is faster than JS in some cases, but those cases are rarer than we expected, and the performance gain is on the order of 2x some of the time, not 10x most of the time. Having had a good deal of experience programming in JS, this doesn't surprise me. JS engines are extremely good at JIT optimizing, especially if you know what you're doing and give them code that's suitable for optimization (e.g. using mostly primitives and arrays, simple loops, avoid creating tons of intermediate data structures, etc). IDK if any of this counts as "serious evidence". It's purely anecdotal really. But it's on par with the "evidence" presented as a counter to this.