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.
第五十八条 违反本法第十四条、第十五条、第十七条第三款和第四十四条第三款规定，制作、销售、提供、使用相关设备、软件、工具、服务的，由公安机关、网信部门、电信主管部门、市场监管部门等依据职责予以没收，处违法所得一倍以上十倍以下罚款，没有违法所得或者违法所得不足五万元的，处五十万元以下罚款；情节严重的，由公安机关并处十五日以下拘留。
。关于这个话题，safew官方版本下载提供了深入分析
Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00563-3
- Allow user to specify the anchor positions (horizontal and vertical) for the icon relative to the canvas (default: center and center)
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