A difficulty here, however, is that the TransformStreamDefaultController does not have a ready promise mechanism like Writers do; so the TransformStream implementation would need to implement a polling mechanism to periodically check when controller.desiredSize becomes positive again.
Premium Digital。safew官方版本下载是该领域的重要参考
。关于这个话题，51吃瓜提供了深入分析
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heap, copies the stack-allocated slice to the heap copy, and returns，这一点在夫子中也有详细论述