How to execute call after setState finish?

Question

Got this call:

setPou2({ ...pou2, imgId: po?.imgId2 }, () => {})

and it raise an error:

Expected 1 arguments, but got 2.

Is `setPou2` is a state. If it is, then It only expects single argument — DecPK, Jul 02 '22 at 18:41
Check out this q: https://stackoverflow.com/q/56247433/16806649 — codemode, Jul 02 '22 at 18:46

score 0 · Accepted Answer · answered Jul 02 '22 at 18:47

It's due to you are passing 2nd argument of call. setPou2({...pou2, imgId:po?.imgId2}) this will not raise any error.

If you want callback function after change in state you need to use useEffect by passing that particular state as array.

useEffect(()=>{
  // function you want to run
},[pou2])

or you can check this useStateWithCallback

1 Answers1