There are a lot of fundamental differences between Visualforce Page and Lightning Components:

Visualforce Page:
1. Page-Centric Model.
2. Most of the processing takes place on the server-side.
3. […]

As you start developing Lightning Components you must take care of a few settings in Salesforce Org, depending on whether you are in production or development environment.

1. DEBUG MODE: When you quick […]

As Apex is a statically typed language, you must choose only one object type per list to iterate.
What if you want to iterate an object which can contain multiple standard and custom objects inside it?
You would […]

CommonPicklist.cmp

{!val}

{!val} […]

// Ternary_Operator.cmp

// Ternary_Operator.js({doInit: function(component) {component.set(“v.isError”,true);},handleNameChange : function(component){var name = component.find(“FullName”).get(“v.value”);if(name […]