How do I edit multiple input controlled components in React?

Question

I have a component that stores a contact object as state - {firstName: \"John\", lastName: \"Doe\", phone: \"1234567890} I want to create a form to edit this object but if I

Answer 1

elements often have a property called name. We can access this name property from the event object that we receive from an event handler:

Write a generalized change handler

constructor () {
    super();
    this.state = {
      name: '',
      age: ''
    };
    this.handleChange = this.handleChange.bind(this);
  }
  handleChange (evt) {      
    this.setState({ [evt.target.name]: evt.target.value });
  }

render () {
    return (
      


        Name
        

        Age
        

      
    );
  }

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