Can we leave the first element blank when declaring a constant using useState?
P粉052724364
P粉052724364 2023-09-14 13:59:15
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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?

P粉052724364
P粉052724364

reply all(1)
P粉368878176

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.

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