5.0 Lifting State & Keys

What is the general purpose of keys in React?

• To optimize React's rendering performance

• To track component state management

• To allow for secure http requests

Why do we need forms in React?

• They allow the DOM to redraw itself every time input occurs

• They allow users to indirectly modify readonly component state

• They allow users to directly input and submit data in components

What best describes React's data flow?

• one way

• two way

• duplex

How do we pass data from parent to child?

• use state

• events

• props

How do we pass data from child to parent?

• use state

• events

• props