Most userland implementations of custom ReadableStream instances do not typically bother with all the ceremony required to correctly implement both default and BYOB read support in a single stream – and for good reason. It's difficult to get right and most of the time consuming code is typically going to fallback on the default read path. The example below shows what a "correct" implementation would need to do. It's big, complex, and error prone, and not a level of complexity that the typical developer really wants to have to deal with:
Цены на нефть взлетели до максимума за полгода17:55
，详情可参考搜狗输入法2026
end-to-end encryption
// 步骤2：倒序遍历（从最后一个人往前推，符合"找右侧元素"的直觉）