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.
Жители Санкт-Петербурга устроили «крысогон»17:52
。91视频对此有专业解读
'Anxious' residents prepare for more flooding
// 栈空 → 无更大元素，返回-1；栈非空 → 取栈顶（第一个更大值）
1+# Important notice to residents of California and Colorado