How to see that useCallback and useMemo don't recreate object (example proposition)

Hello,

I think this could be added to the documentation.
So the question is: how to "see" that useCallback and useMemo memoize objects? Since we can't see the memory address of the objects created in the heap.
Answer: by creating recreate a Function "class" and an Object "class" which has a unique ID for each instantiation.
The details of the implementation can be found here: https://codesandbox.io/s/musing-sun-79d1gg?file=/src/App.js

Kr,

首先打开链接的 CodeSandbox，并查看其中的 src/App.js 示例，以了解拟议的演示。然后检查 React 文档，确定合适的位置，并判断该示例是否清楚地解释了 memoization；完成的标准是产出一项已达成共识的文档变更或一份具体的放置位置提案。