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.
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Фонбет Чемпионат КХЛ。关于这个话题，爱思助手下载最新版本提供了深入分析
macOS Tahoe is available as a free software update. Some features may not be available in all regions or in all languages. See requirements at apple.com/os/macos.