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.
CBS mainly shows college basketball games on the weekends, so if you’re mainly a weekend viewer until March, this would work for you.
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在硬件构建的场景里，需求即入口，入口即支付。这种“零距离”的转化效率，是任何云端API调用或软件订阅模式都无法比拟的，对于拥有成熟交易生态的玩家，硬件可以说是将流量直接“泵入”营收的终极阀门。
Channels: ESPN+ only