callback on useState code example

Example 1: react callback set staet

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

Example 2: callback in react

import React, { useCallback } from 'react';

function MyComponent() {
  // handleClick is the same function object
  const handleClick = useCallback(() => {    console.log('Clicked!');  }, []);
  // ...
}

Example 3: usestate hook callback

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

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

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

Tags:

Misc Example

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