Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
The web platform has incredible documentation compared to most tech platforms. However, most of it is written for JavaScript. If you don’t know JavaScript, you’ll have a much harder time understanding how to use most Web APIs.
，这一点在safew官方版本下载中也有详细论述
to ERMA, as it holds a key position in the history of business computing while
第一百零四条 检查的情况应当制作检查笔录，由检查人、被检查人和见证人签名、盖章或者按指印；被检查人不在场或者被检查人、见证人拒绝签名的，人民警察应当在笔录上注明。