StrictNullChecks is required to improve performance on large projects.

[michaelangeloio]

I've noticed that the tsconfig.json compiler property strictNullChecks need to be enabled to get proper IntelliSense performance on useQuery on a large project. The large project is an NX mono repo, for instance. This also happens for me with other hooks like useMutation when strictNullChecks is false.

Here's a TS compilation stack trace for the said project, with strictNullChecks: false:

Here's a TS compilation stack trace for the said project, with strictNullChecks: true:

As you can see, the call stack is much larger and the compilation time shortens by at least 2 seconds.

Other users have also reported similar issues on discord. Upon investigation, it seems that strictNullChecks is required as a part of zod: colinhacks/zod#1750

Until we dig deeper to see if we can resolve this on our end, I recommend updating the docs to reflect this.