Use React ref to Get a Reference to Specific Components
When you are using React components you need to be able to access specific references to individual component instances. This is done by defining a ref. This lesson will introduce us to some of the nuances when using ref.
Add Custom propType Validation to React Components
In addition to the types built into React.propTypes we can also define our own custom propType validator
Compose React Component Behavior with Higher Order Components
Higher order components will allow you to apply behaviors to multiple React components. This can be done by passing the state and any functions into components as props.