Compiles itself (2 points)
"Occasionally landowners may wish to retain title to objects, in which case they will be returned to their care," said the spokesperson.
，更多细节参见safew官方版本下载
The design of Web streams predates async iteration in JavaScript. The for await...of syntax didn't land until ES2018, two years after the Streams Standard was initially finalized. This timing meant the API couldn't initially leverage what would eventually become the idiomatic way to consume asynchronous sequences in JavaScript. Instead, the spec introduced its own reader/writer acquisition model — and that decision rippled through every aspect of the API.
It’s not our most expensive case, but we consider phase 0 first simply because we end up checking for it as part of loading the phase in the first place: