The new API has complete parallel sync versions: Stream.pullSync(), Stream.bytesSync(), Stream.textSync(), and so on. If your source and transforms are all synchronous, you can process the entire pipeline without a single promise.
function_call_in_declaration 2.686
，这一点在体育直播中也有详细论述
truncate is now exported from (guile).，详情可参考WPS下载最新地址
this.state = [this.id, this.state[1] + 1, value];，更多细节参见体育直播