State and Props

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React Lifecycle
React State Vs Props

React Lifecycle

1. Based off the diagram, what happens first, the ‘render’ or the ‘componentDidMount’?
   • Render
2. What is the very first thing to happen in the lifecycle of React?
   • Mounting
3. Put the following things in the order that they happen: componentDidMount, render, constructor, componentWillUnmount, React Updates
   • Constructor, render, react updates, componentDidMount, componentWillUnmount
4. What does componentDidMount do?
   • componentDidMount is invoked immediately after a compenet is mounted and is a good place to load anything using network requests or initialize the DOM.

React State Vs Props

1. What types of things can you pass in the props?
   • arguments, any value you want to pass into a component/function.
2. What is the big difference between props and state?
   • Props you pass in and can only be updated outside of the component, state is handled inside a component and can be updated inside the component.
3. When do we re-render our application?
   • When you want to change something displayed in the application (usualy based on user input).
4. What are some examples of things that we could store in state?
   • Form data, counters, dynamic statistics (example: changing stockmarket info, weather conditions, etc.)

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