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Aug 27, 2019
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貌似 object 类的返回值，每次都会触发一个浅对比，会成为一个性能杀手，而且对于一些深层次的依赖也会遗漏。使用 defineProperty 委托的方式是对的，但不应该只委托 function 的类型，把其他的也加进来用于标记依赖。有兴趣可以看下 vue 的 computed 原理以及 immer.js 的实现方式。
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