Salesforce

Lightning Component also refer as Aura Component Or Aura Framework is base on View-Controller Architecture. Refer the Below Image which has been taken from Trailhead Module. Aura architecture Server-Side Controller (Apex): Server calls are expensive, and can take a bit of time. Milliseconds when things are good, and long seconds when the network is congested. You don’t want apps to be locked up while waiting for server responses. The solution to staying responsive while waiting is that server responses are handled asynchronously. What this means is, when you click the Create Expense button, your client-side controller fires off a server request and then keeps processing. It not only doesn’t wait for the server, it forgets it ever made the request! Then, when the response comes back from the server, code that was packaged up with the request, called a callback function, runs and handles the response, including updating client-side data and the user interface. If you’re an exper