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Can we write
const [, setOpenCollapse] = React.useState(false);
? If I leave the first element blank when declaring a constant using useState in React, is this valid syntax?
Syntactically, this code is valid, it compiles. However, when written like this, you won't have a reference to the state and therefore won't be able to use it. If you don't use state, there's no point in having it.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Syntactically, this code is valid, it compiles. However, when written like this, you won't have a reference to the state and therefore won't be able to use it.
If you don't use state, there's no point in having it.