The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.
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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The Elder Scrolls Online Collection: Gold Road is the definitive version of the game, offering access to all zones, biomes and quest arcs. This online game can be played cooperatively, but there's also a lot of PvP content. It's set 1,000 years before Skyrim, but there are many iconic locations from that game to explore.
2. 不改变已有字段/接口语义
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Pokémon XP is a brand new fan fest for Pokémon aficionados, which will include all sorts of interactive events, workshops, panels, meet and greets, and more.，推荐阅读safew官方版本下载获取更多信息
// 测试用例（可直接运行验证）