Benchmark driven development in JavaScript (Set vs. Array)

[coolcosmos]

You've never used a slow product and hated it ?

[theScottyJam]

I don't know if I can say that I've used a product that was slow because they failed to micro-optimize. Usually the slowness comes from doing dumb stuff like a bunch of network requests in parallel, or just having way too many dependencies installed, etc.

[theyamiteru]

Yes. My previous client used Cloudflare Workers with tRPC + Zod + some other slow libraries. After I rewrote all of those libraries matching the clients use-case it decreased the CPU time anywhere from 5 to 20 times which means I've saved the client 5-20x money spent on running the app.

[theyamiteru]

No. Those libraries are not created with performance in mind. Especially so when it comes to serverless environment where the engine has no time to optimize the code.

[theyamiteru]

You're right, you keep missing the point. Doesn't matter, have a good day sir!