reading-notes

Class Three Notes (401)

Classes are a template for creating objects, and they are not hoiseted.
The keyword this is a pointer to an object inside the class, it refers to specific methods or properties that are defined inside the class. Arrow funcions do not carry their own this, so it will always point to its parents properties or methods.

Within Express, routing refers to how an applications’s endpoints (URIs) respond to client requets.
A route path defines the endpoints a twhic requets can be made, whereas route methods are the HTTP request methods.
When there’s are callback functions to be skipped if a specific event happens, next is an appropriate parameter to be added to the route handler. A call back function must be specified if next has been passed to the middleware.

Express router lets us routing APIs with .use, .get,. .para., and route.
We initialize express.Router() when we apply routes and tell the applciation to use those routes.
Route middleware allows something to be done before a request is processed, such as input validity, authentication, data logging, etc.