JAVASCRIPT

•“In React, everything is a component.” Explain

“In React, everything is a component.” Explain.
Components are the building blocks of a React application's UI.
These components split up the entire UI into small independent and reusable pieces.
Then it renders each of these components independent of each other 
without affecting the rest of the UI

components in react

//Use a pure stateless component
export const myComponent = () => return ()
// Stateful
export class myComponent extends React.Component {
  //use Hooks for more comfort
  ...
} 

what is components in react

Components are independent and reusable bits of code.