Liao-js

``` dayjs('2024/3/9 0:00:00', 'YYYY-MM-DD') { '$L': 'en', '$u': undefined, '$d': 2023-12-31T16:00:00.000Z, '$y': 2024, '$M': 0, '$D': 1, '$W': 1, '$H': 0, '$m': 0, '$s': 0, '$ms': 0, '$x': {}, '$isDayjsObject':...

you can see this [demo](https://element-plus.run/#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)

你可以先输入结束时间，再输入开始时间就不会变了，结束时间 > 开始时间。 看动图开始时间会改变的原因：你输入的时候，结束时间就已经在判断是否大于开始时间了，发现开始时间 > 结束时间的时候，就会导致开始时间 = 结束时间

你可以试下在 `validate` 里面不进行 `return` 或者 `return` 的类型是 `promise`，因为对 `validate` 的 `callback` 的返回类型定义是 `Promise | void`

我在 ts 看到这个问题的 [issue](https://github.com/microsoft/TypeScript/issues/43921)，里面有项目是改回了` () => void` 来避免报错

Can you provide a use case scenario where the error occurs?

I will close my [PR](https://github.com/element-plus/element-plus/pull/16782)

因为你的id都是undefined的缘故吧

Any good suggestions?

fixed by https://github.com/element-plus/element-plus/pull/16682