reading-notes

States and Props

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

• Render happens first. The render phase is pure and has no side effects
• may be paused, aborted, or restarted by react

1. What is the very first thing to happen in the lifecycle of React?
   • The very first thing to happen is the mounting phase.
   • When an instance or a component is made it happens during the mounting phase
2. Put the following things in the order that they happen: componentDidMount, render, constructor, componentWillUnmount, React Updates
   • componentDidMount
   • render,
   • constructor,
   • componentWillUnmount,
   • React Updates
   • Constructor
   • static
   • getDerivedStateFromProps
   • render-React updates
   • componentDidMount
   • UNSAFE_componentWillMount
3. What does componentDidMount do?
   • the method is invoked immediately after a component is mounted
   • if you need to load anything it should go there