AngularJS Tutorial For Beginners – Learn AngularJS For Free in 10 Min

1. AngularJS Tutorial

AngularJS!! One of the most blooming technologies nowadays used in many apps and websites as well as by many companies. Let’s discuss AngularJS tutorial for beginners, a step by step guide. Moreover, we will discuss the pros & cons, applications, future scope, versions etc. This AngularJS tutorial is a treasure hunt, which is loaded with many surprises. You just have to learn smartly to get the treasure in 10 minutes.

So, are you ready for AngularJS Tutorial?

AngularJS Tutorial

AngularJS Tutorial For Beginners

2. What is AngularJS?

AngularJS is a platform for making dynamic web pages. It is a framework of javascript that is structural too. AngularJS is one of the parts of MEAN stack technology, nowadays very popular consist of four parts

  • MongoDB which is a NoSQL database
  • Express.js which is the server of a web application
  • Angularjs for the front end part
  • Node.js used for back-end purpose

Misko Hevery and Adam Abrons developed AngularJS initially in 2009. Later on, supported by Google 2010.

AngularJS is an open source framework. It means its original source code is freely available to all. Anyone can access its code as well as can make changes in it too. It works on a client side.

3. AngularJs Versions

Since variation becomes a part of today’s world. Similar in technology on a daily basis some upgradation is taking place to introduce some new features so that it makes more easy for a developer to code hence making the technology more efficient and powerful.

In this part of AngularJS Tutorial, we will discuss all the versions of angular available till now:

  • Angular1
  • Angular2
  • Angular3
  • Angular4
  • Angular5
  • Angular6
  • Angular7

i. Angular1

Its architecture is based on a model view controller developed for single page application.

ii. Angular2

  • It was introduced in 2016 to meet the needs.
  • Unlike angular1 its architecture is based on service/controller.
  • It comes with the feature of dynamic loading. It allows adding new directives and control.

iii. Angular3

It is developed but gets skipped and angular4 was developed.

iv. Angular4

  • It was introduced in 2017.
  • It is compatible with angular2.
  • In this version file size get improved to 60%.
  • It provides enhancements such as inbuilt Animation Package, ngTemplate, form Validator attributes etc.

v. Angular5

  • It is an updated version of angular4.
  • It introduces build optimizer to discard the unnecessary code from an application.
  • There is an improvement in the angular compiler in this version of angular5
  • A static injector is introduced on the place of a reflective injector to decrease the application file size.

vi. Angular6

Angular6 is the updated version of angular5. It comes with the following features:

  • It provides self-contained angular components and ngAngular Elements
  • Command Line Interface (CLI) Workspace has been improved.
  • Library Support has been updated such as typescript upgraded its version to 2.7 and RxJs upgraded its version to 6.0.0.
  • There is an enhancement in routing.
  • There is an upgradation in forms.
  • In angular6 in reactive forms if you are using form builder or form array you can use as many validators as per requirement there is no restriction on the number of validators one should use.
  • Ivy Rendered which is a rendering engine used in angular6 which makes its processing speed must faster as compare to other versions.

vii. Angular7

It is the most updated version of angular till now.

  • Library support has been updated such as typescript upgraded its version to 3.1 and RxJs upgraded its version to 6.3.
  • It supports backward compatibility with nodev10.
  • For @output, error handling improves.
  • Angular CLI version has been updated to 7.0.2 which have some advanced features like built-in features of routing.

4. Why AngularJS?

AngularJS market in the world is rapidly growing. People are opting for its certification and courses more and more. The growth in a career in web development is increasing its graph day by day.

In this session of AngularJS tutorial, we will learn the major reason for evolving rapid increase of use of Angularjs:

  • Angular JS is used to make the HTML page as dynamic. By using angular one can convert the static page (a page that does not change except if changes are made by manually in its code) into a dynamic page as it extends the functionality of HTML elements.
  • It helps to make a single page application. It means content gets dynamically written on the page. A User need not require to refresh the page also the control will also remain on the same page it does not get transfers to another page.

5. Features of AngularJS

In this part of the AngularJS tutorial, we will cover a list of AngularJS features:

AngularJS Tutorial - Features of AngularJS

AngularJS Tutorial – Features

i. Not browser specific

It can run on all major browsers except internet explorer 8.0 and smartphones including Android and ios based phones/tablets.

ii. Code Less

A programmer has to write less and can perform more functionality with the same code.

iii. Productivity

A user interface is created in a simple way and that too fast also because of strong template syntax.

iv. Speed and performance

Speed is fast as angular apps code loads quickly due to code splitting.

v. Dependency Injection

This built-in injection helps in developing the application easily as well as it is easy to understand.

v. Deep Linking

It allows bookmarking the web page. The page gets saved by its URL without getting its state change.

vi. Routing

Routing allows the switching between views.

6. AngularJS Apps

The following part of the AngularJS tutorial contains various applications of AngularJS:

  • Paypal
  • Jetblue for
  • Istock photo
  • Weather
  • lego
  • Netflix

7. Architecture of AngularJS

The angular framework is based on MVC architecture abbreviated as Model View Controller.

  • Model: It consists of the data of the application. Request made from the view part is handled by it.
  • View: Presentation layer represents by a view part. The user interaction is done with a view. Display task is done by view part.
  • Controller: The linking between the model part and view part handled by the controller. It receives input and then verifies it after that perform the operation to modify the state of the data model.

8. Components/Building Blocks of AngularJS

AngularJS components are considered as the building blocks. It is a small unit which we use to build an application. Components also define as a small code to create an application.

The component in AnuglarJS consist of the following elements:

  • Template
  • Class
  • Metadata

i. Template

The template is the part that contains directives and binding. HTML part is rendered using a template.

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SYNTAX

Template: 
<HTML code>
class properties

ii. Class

It is the same as defined in other programming languages such as c++ , Java Class etc. It contains data member, methods, typescript that define the class.

SYNTAX:

class classname {
Propertyname: PropertyType = Value
}

The class is the keyword to define a class.

Classname is the name given to that class.

The Property name is the name of a data member that a class can contain. A class can contain multiple properties.

Property type defines the type of value property is holding.

Value is the data that a particular property specified in a class can hold.

iii. Metadata

Metadata is like a repository of details about a data. Decorator defines the metadata.

10. AngularJS Advantages and Disadvantages

This session of AngularJS tutorial is divided into two parts: benefits and limitations.

AngularJS Tutorial - Pros and Cons

AngularJS Tutorial – Advantages and Disadvantages

a. Benefits of AngularJS

i. Open Source

Since it is an open source JavaScript MVC framework. Therefore, custom apps can be made available to anyone at the affordable cost.

ii. Single Page Application (SPA)

AngularJS create single page application, which can work fast and it is user-friendly.

iii. No prerequisite Knowledge

JavaScipt and HTML both are the only prerequisites to learn AngularJS.

iv. Easy To Extend

IT is easy to extend as it contains built-in attributes that make it possible to extend the functionality of HTML by attaching a specific behaviour with it.

v. Easy To Customize

It is easy to customize as one can create its own directives too in it.

vi. Google Supported

AngularJS has the support of Google, a large community. One can fully relax about the regular updates as well as its performance should also get better.

vii. Easy To Test

An Angular code is easy to unit test as there is an inbuilt dependency injection comes in it which makes it easier to test individual components of the code. As well as, it supports both unit testing and integration testing.

b. Limitations of AngularJS

  • Less Secure

It is not secure because there is no server authorization and authentication in angular so one cannot verify the identity in it. Security is one of the major concerns in today’s world technology is expanding rapidly so as the security concerns as it is necessary that your data should remain secure.

  • Only Emphasize on Javascript

It is just a single static page if its javascript side gets hidden.

  • Memory Leakage

Also, it is a framework of javascript and there is an issue of memory leak in javascript which makes its performance low.

  • Not Supported Everywhere

AngularJS does not support internet explorer 8.0.

11. AngularJs Future Scope

Angular is among one of the mean stack technology and it is among one of the latest technology and easy to learn. Many IT companies are working on it as it makes web application development much efficient and powerful. Single page application is the future of web application learning it will definitely give growth to your career.

After being supported by Google many top companies SalesForce, Amazon-like started using angular. This is because angular provides an efficient and reliable solution to complex problems as well as it takes less time to develop software, efforts, get reduced while making it.

Javascript developer pay scale also increase approx $104,390 USD per annum and it consider as the average pay scale for the angular developer.

So, there is a great future for the angular developer.

i. Productivity

The user interface will create in a simple way and that too fast also because of strong template syntax.

ii. Speed and Performance

Speed is fast as angular apps code loads quickly due to code splitting.

iii. Dependency Injection

This built-in injection helps in developing the application easily as well as it is easy to understand.

iv. Deep Linking

It allows bookmarking the web page. The page gets saved by its URL without getting its state change.

v. Routing

Routing allows the switching between views.

So, this was all about AngularJS tutorial. Hope you liked our explanation.

12. Summary of AngularJS Tutorial

As we studied AngularJS is the framework of JavaScript. In this AngularJS tutorial, we studied its versions history, architecture, building blocks, features and benefits and limitations. Stay tuned for more AngularJS tutorial, it’s just a beginning!

Till share your comments with us.

2 Responses

  1. Lisa Brown says:

    Hi,
    This an excellent tutorial related to angularJS development for a beginner. Thank you for sharing this informative and useful tutorial with us. Especially, I love the way you discuss all the facts of angularJS. This post is really helpful for angularjs developers. Keep sharing new articles.

    • DataFlair Team says:

      Hi Lisa,
      We are glad you found our AngularJS tutorial informative. This AngularJS tutorial is specially designed for beginners and many more articles are in our pipeline. We are regularly publishing a new article on AngularJS. Keep exploring DataFlair, there is much more you can learn.

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