reactjs - How to use `setState` callback on react hooks

Question

React hooks introduces useState for setting component state. But how can I use hooks to replace the callback like below code:

setState(
  { name: "Michael" },
  () => console.log(this.state)
);

I want to do something after the state is updated.

I know I can use useEffect to do the extra things but I have to check the state previous value which requires a bit code. I am looking for a simple solution which can be used with useState hook.

Answer 1

You need to use useEffect hook to achieve this.

const [counter, setCounter] = useState(0);

const doSomething = () => {
  setCounter(123);
}

useEffect(() => {
   console.log('Do something after counter has changed', counter);
}, [counter]);