At its core, a stream is just a sequence of data that arrives over time. You don't have all of it at once. You process it incrementally as it becomes available.
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第十九条 为了免受正在进行的不法侵害而采取的制止行为，造成损害的，不属于违反治安管理行为，不受处罚；制止行为明显超过必要限度，造成较大损害的，依法给予处罚，但是应当减轻处罚；情节较轻的，不予处罚。。业内人士推荐91视频作为进阶阅读
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Object.defineProperty() — MDN Web Docs