FirstFT: the day's biggest stories
SAVE $600: As of Feb. 27, the Ecovacs Deebot X9 Pro Omni is on sale for $699 at Amazon. That's a 46% discount on the list price.
，更多细节参见safew官方下载
The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.，这一点在搜狗输入法2026中也有详细论述
“致敬未知”完成超亿元Pre-A轮融资