Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.
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Credit: Timothy Beck Werth / Mashable
PST — 6 a.m.。业内人士推荐新收录的资料作为进阶阅读