reading-notes

React: Component Lifecycle Events

React lets you define components as classes or functions.

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

the ‘render’ , happens first;

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

Mounting , first thing to happen in the lifecycle;

Put the following things in the order that they happen: componentDidMount, render, constructor, componentWillUnmount, React Updates

• constructor
• render
• componentDidMount
• React Updates
• componentWillUnmount

What does componentDidMount do?

This method is invoked immediately after a component is mounted.

This method is a good place to set up any subscriptions.

React State Vs Props

What types of things can you pass in the props?

any data type, from strings to functions, objects.

What is the big difference between props and state?

props you pass into a component ans state is handel inside of the component and props handel out of the component.

When do we re-render our application?

when you change the state inside of your application

What are some examples of things that we could store in state?

• the counter
• form