A city divided by a gap in healthy life expectancy
Web streams use a locking model to prevent multiple consumers from interleaving reads. When you call getReader(), the stream becomes locked. While locked, nothing else can read from the stream directly, pipe it, or even cancel it – only the code that is actually holding the reader can.
，这一点在safew官方版本下载中也有详细论述
Author(s): Jiachen Fan, Shang-Peng Gao
Advanced: $249/month
Act Two: Traps and Dicks. Synonyms and Subs-titutes.