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yanhaijing avatar yanhaijing commented on June 12, 2024

hi 哥们，很高兴能帮你解答问题。
data.js设计出来有两个功能，数据中心和消息通知，但其核心还是消息通知。因加入了消息系统，和魔法key，所以读取数据的速度都有很多损耗，但为了消息通知这样做是值的的。

data.js经过jspref性能测试，但仅在浏览器内部，node中没有经过性能测试。浏览器中的测试结果显示向data中存取数据的速度和直接读取不再同一个数量级。

data.js没有数据锁，故不支持多线程，但其数据更新时，会发出消息通知。

综上所述，data.js不太适合来做缓存，缓存应该高效，容错，并发，这些data.js都不具备，data.js设计出来是为了不同模块间数据的同步。

from data.js.

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