Preact/React and setting state after fetch in react.js ?

• Yogesh Kumar
• 02-May-2022
• 0

The right place to check for state change is either to pass callback as second argument to setState method

  this.setState({
      explanation: 'phil says so'
    },() => {
      console.log('Set the explanation state successfully')
    }) 

or using componentDidUpdate lifecycle method.

 componentDidUpdate(prevProps, prevState){
  if (prevState.explanation !== this.state.explanation) {
    console.log('Set the explanation state successfully')
  }
}

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