Calling setState() in React from render method

Question

I am trying to reset React state variables (to default values) in a container using setState() method. But getting the following error

 Warning: setState(..         


        

Answer 1

componentWillReceiveProps is deprecated now (since June'18)

You should use one of the alternatives presented in the react docs instead.

In your case I guess it could be justified to use the 'not so recommended' alternative 1 version that uses getDerivedStateFromProps, as you are just recomputing the state vars:

getDerivedStateFromProps(props, state) {
  if(props.resetMessages) {
    const company = Object.assign({}, state.company);
    company.id = 0;
    company.messages = [];    
    return {
      company: company
   }
}