hand-optimized code, because it does not require the extra
TransformStream creates a readable/writable pair with processing logic in between. The transform() function executes on write, not on read. Processing of the transform happens eagerly as data arrives, regardless of whether any consumer is ready. This causes unnecessary work when consumers are slow, and the backpressure signaling between the two sides has gaps that can cause unbounded buffering under load. The expectation in the spec is that the producer of the data being transformed is paying attention to the writer.ready signal on the writable side of the transform but quite often producers just simply ignore it.
，这一点在safew官方下载中也有详细论述
正因为抽佣的边际空间正在收窄，平台才不得不重新思考一个更根本的问题：如果不再依赖提高费率，增长还能从哪里来。
Москвичей предупредили о резком похолодании09:45