You might assume this pattern is inherent to streaming. It isn't. The reader acquisition, the lock management, and the { value, done } protocol are all just design choices, not requirements. They are artifacts of how and when the Web streams spec was written. Async iteration exists precisely to handle sequences that arrive over time, but async iteration did not yet exist when the streams specification was written. The complexity here is pure API overhead, not fundamental necessity.
Maggie 姐孤独地在水车屋吃铁板烧。夜总会的衰落也使这里的生意一落千丈，人满为患的场景已不再（图：南方人物周刊记者 方迎忠），推荐阅读heLLoword翻译官方下载获取更多信息
Фото: Кирилл Каллиников / РИА Новости。关于这个话题，旺商聊官方下载提供了深入分析
* @returns {number} - 当日价格的跨度，详情可参考Line官方版本下载
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