Memoization is a new concept in ReactJS through which we can store a heavy functional component in memory. Then reuse that component again calling it from cache.
The default behavior of a component declared using React.memo is that it renders only if the props have changed. It does a shallow comparison of the props to check that but there is an option to override that as well.
NOTE: ReactJS is only a frontend library and not the whole framework, which deals with the View component of MVC (Model — View — Controller).
Given a large number of files, it…
reverse() method reverses the order of the elements in an array.