React.memo is a higher order component. It’s similar to React.PureComponent but for function components instead of classes

React.lazy function lets you render a dynamic import as a regular component.

static contextType The contextType property on a class can be assigned a Context object created by React.createContext(). This lets you consume the nearest current value of that Context type using this.context. You can reference this in any of the lifecycle methods including the render function.

static getDerivedStateFromError() This lifecycle is invoked after an error has been thrown by a descendant component. It receives the error that was thrown as a parameter and should return a value to update state.