Prerequisite for learning Angular

Issue

I need to learn Angular for working on a project. I am a backend Java/Spring developer I have knowledge of HTML and Javascript. I have also worked on basic Knockout.js.

What are the prerequisite for learning Angular ?

Solution

Moderate knowledge of HTML, CSS, and JavaScript.

Basic Model-View-Controller (MVC) concepts.

The Document Object Model (DOM).

JavaScript functions, events, and error handling.

HTML : Most of the templates we create in angularJS is in the form of handcrafted htmls. i.e. So you must know that what are forms in html and what are tags ng-form etc.

CSS : While hand crafting template you should require css to make more attractive UI design.

DOM : Document object model and how document is created. If you have good jquery background you can easily pick up this part.

Object Oriented JavaScript: Global name space: AngularJS heavily uses javascript name space. i.e.

Object Oriented JavaScript: Inheritance: Inheritance is very important concept in JavaScript. Inheritance is heavily used in all the frameworks in JavaScript. i.e.

var Employee = function(fname) {
   this.fname =fname;
   console.log("Your first name is "+fname);
} 
var fistEmployee = new Employee("John");

var secondEmployee = new Employee("Jim");

fistEmployee.prototype.lastname = function(lname) {
      this.lname=lname;
      console.log("Your last name is "+lname);
}

So using prototype you can easily add properties on the fly.

Model View Whatever(MVW): This term is used heavily by all AngularJS developers. It is coined by Google. It is simple MVC concept.

Separation of Concern(SOC): SOC concept is heavily used in AngularJS. In angularJS all the controllers, directive, services and factories are made for SOC. It provide more lean and cleaner code. Also re usability automatically increases if you use SOC concept.

Promises : Promises are nothing but callbacks. When you call any AngularJS service it will be called asynchronously. When response is send from service callback hold the response and do the needful.

Test Driven Development : Best thing about AngularJS is you can easily write test script so that when you go home, you can easily have sound sleep.

Answered By - parthas j