getDerivedStateFromProps.js

static getDerivedStateFromProps(nextProps, prevState){
   if(nextProps.someValue!==prevState.someValue){
     return { someState: nextProps.someValue};
  }
  else return null;
}

componentDidUpdate(prevProps, prevState) {
  if(prevProps.someValue!==this.props.someValue){
    //Perform some operation here
    this.setState({someState: someValue});
    this.classMethod();
  }
}

this.setState({someState: someValue});
shouldn't this be:
this.setState({ someState: this.props.someValue }); ?

Hi this is good, but how can i mutate the state

Any way i got it thanks @ProiOSDeveloper

this.setState({someState: someValue});
shouldn't this be:
this.setState({ someState: this.props.someValue }); ?

@ragabmoh anything is fine. It's just for purpose of example.