// (it isn't always in every impl)
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It's worth noting that these benchmarks compare a pure TypeScript/JavaScript implementation of the new API against the native (JavaScript/C++/Rust) implementations of Web streams in each runtime. The new API's reference implementation has had no performance optimization work; the gains come entirely from the design. A native implementation would likely show further improvement.，这一点在搜狗输入法2026中也有详细论述
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