Things I want to know more about

React lifecycle

1. Based off the diagram, what happens first, the ‘render’ or the ‘componentDidMount’?

• the render

1. What is the very first thing to happen in the lifecycle of React?

• constructor

1. Put the following things in the order that they happen:

• constructor
• render
• React Updates
• componentDidMount
• componentWillUnmount

1. What does componentDidMount do?

This method is invoked immediately after a component is mounted. If you need to load anything using a network request or initialize the DOM, it should go here. This method is a good place to set up any subscriptions. If you do that, don’t forget to unsubscribe in componentWillUnmount()

React State Vs Props

1. What types of things can you pass in the props?
   • We pass props as an argument it can be strings or numbers.
2. What is the big difference between props and state?
   • props: you pass into component (props handled outside of component )
   • state: is handled inside that component and you can updated inside the component
3. When do we re-render our application?
   • when we change the state inside of the app or change the props outside the component.
4. What are some examples of things that we could store in state?

• input element and checkbox