Most userland implementations of custom ReadableStream instances do not typically bother with all the ceremony required to correctly implement both default and BYOB read support in a single stream – and for good reason. It's difficult to get right and most of the time consuming code is typically going to fallback on the default read path. The example below shows what a "correct" implementation would need to do. It's big, complex, and error prone, and not a level of complexity that the typical developer really wants to have to deal with:
Immediately after Fincke's medical event, NASA officials said they wouldn't name the affected astronaut, citing medical privacy concerns. During a news briefing the next day, NASA's chief health and medical officer J.D. Polk said the incident wasn't an injury in the course of work, though he stopped short of saying whether it was some other kind of injury.
，这一点在同城约会中也有详细论述
He would be a popular choice after his music has been discovered by a new generation, and after he has suffered a series of health problems in recent years.
时至今日，一段对话仍传递着穿透人心的力量。