How to use `componentDidMount()` with `useEffect()`?

function Component() {
  useEffect(() => console.log('Component did mount!'), [])
  
  return null
}

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September 9th, 2019

# componentDidMount() as hook

useEffect() receives two arguments: The first is a callback functions which is fired after browser layout and paint. The second argument is an array of values and reponsible for the behavior of useEffect.

If any of the values in the array changes, it fires the callback on every rendering.
An empty array means: Fire the callback once.
A missing second argument will fire the callback after every render.

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# componentDidMount() as hook