Reactjs.org: Are hooks synchronous?

Created on 17 Feb 2020  路  4Comments  路  Source: reactjs/reactjs.org

I've searched in the docs but didn't found this information. So, hooks are synchronous or asynchronous?

picture gajomon

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you cant define a hook as async because they are not supposed to return a promise. If you do it will result in race conditions. So instead write async function inside the hook and then call it.

picture hashinclude72 on 20 Feb 2020
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@gajomon hooks are synchronous

developerantoniosousa picture developerantoniosousa on 19 Feb 2020
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Alright, but where is this information from?

gajomon picture gajomon on 19 Feb 2020

you cant define a hook as async because they are not supposed to return a promise. If you do it will result in race conditions. So instead write async function inside the hook and then call it.

hashinclude72 picture hashinclude72 on 20 Feb 2020
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Alright, I've tried it and you're right, hooks doesn't returned a promise. Thanks

gajomon picture gajomon on 20 Feb 2020
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