React.Component is the way to declare a new component class.
When you declare a new component class, you need to give that component class a name. On line 4, notice that our component class’s name is
Component class variable names must begin with capital letters!
In addition, there is a React-specific reason why component class names must always be capitalized. We’ll get to that soon!
Select new.js. Edit your code so that your component class is named