shouldComponentUpdate method
ReactJS lifecycle method that is invoked before rendering when nextProps
or nextState
are being received.
Use this as an opportunity to return false
when you're certain that the transition to the new props and state
will not require a component update.
See: reactjs.org/docs/react-component.html#updating-shouldcomponentupdate
Implementation
bool shouldComponentUpdate(Map nextProps, Map nextState) => true;