To achieve usable performance, every major runtime has resorted to non-standard internal optimizations for Web streams. Node.js, Deno, Bun, and Cloudflare Workers have all developed their own workarounds. This is particularly true for streams wired up to system-level I/O, where much of the machinery is non-observable and can be short-circuited.
It is also necessary to emphasize that many optimizations are only possible in parts of the spec that are unobservable to user code. The alternative, like Bun "Direct Streams", is to intentionally diverge from the spec-defined observable behaviors. This means optimizations often feel "incomplete". They work in some scenarios but not in others, in some runtimes but not others, etc. Every such case adds to the overall unsustainable complexity of the Web streams approach which is why most runtime implementers rarely put significant effort into further improvements to their streams implementations once the conformance tests are passing.
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I’ll admit, having seen a prototype Pro Charger in person back in January, that it’s the prettiest way to re-juice a smart ring I’ve ever seen. Whereas Samsung and Oura have both opted for discreet, ring box-style hardware, Ultrahuman made something designed to sit on your nightstand. It’s not taking up space just for show, either, since it includes the aforementioned battery, LED charge indicator, speaker and haptics. It’s also got the ability to diagnose and address firmware issues to eliminate worries around firmware issues bricking devices.
在粤港澳大湾区，一缕中药香，点燃了城市之夜的“烟火气”。智能中医体验、中医药特色美食、中药材辨识、特色疗法体验……自2024年5月起，中山等21个地市相继推出“中医药健康夜市”。年轻人下班后赴一个“中医养生局”，时尚又健康。