The Web streams spec requires promise creation at numerous points — often in hot paths and often invisible to users. Each read() call doesn't just return a promise; internally, the implementation creates additional promises for queue management, pull() coordination, and backpressure signaling.
Jonathan Head,South East Asia correspondentand
。WPS官方版本下载对此有专业解读
Currently there is no regulation over who can provide procedures which do not involve incisions.。关于这个话题，搜狗输入法下载提供了深入分析
And that’s only the beginning.