Today let’s have brief
introduction about angular JS, which becomes very popular web app development framework among developers. We cover following points in
our article
- What is angular JS?
- Why angular JS? OR purpose of angular JS?
- What are the alternatives of angular JS?
- What controls are providing by angular JS?
- Features of angular JS?
- Components.
- Backend
- Main feature: built –in facility: Injectable &
testable:
- Example
- Conclusion
What is angular JS?
Angular JS is a
framework to develop dynamic web apps. It is template language by using
extended HTML’s code which can help to express your application’s components to
user.
Why angular JS? OR purpose of angular JS?
Angular JS is used
for creating mobile application. No doubt, that HTML is most likely use for
delivering static declaring documents. But, when required to declaring dynamic
views to the web – applications at that time the angular JS is comes in
picture.
The angular JS
helps to create dynamic views with extended HTML vocabulary for web –
applications. And also give extraordinary expressive, readable & quick ways
to develop applications.
What are the alternatives of
angular JS?
Here,
alternative means I try to introduce other frameworks who work like angular JS.
|
Ionic.
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Sencha Touch.
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JQueary Mobile.
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Kendo UI.
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Framework 7.
|
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Knockout.
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Backbone JS.
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Ember JS.
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And many more…
|
These
are the other frameworks who can also deal with HTML’s short tags either by abstracting
away HTML, CSS, and JavaScript or by providing a mandatory way for manipulating
the DOM model.
All these are the hybrid
with the HTML, CSS, & JavaScript & jQuery. But, let us gleams about the
particular framework that is Angular JS.
What controls are providing by
angular JS?
Data
binding:
Data
– binding are two types respectively early binding & late binding in other
words static binding or dynamic binding.
Whatever
the variables, references, objects, when created they have either primitive or
non primitive, class_type, or instance of any class or superclass.
As
we know that the data – binding is one of the OOPs concepts which can follows
the auto updating way whenever the changes are required, it can updated models
& manage auto view changes also. This is very good because it eliminates
DOM manipulation which can be bad impact to data – binding.
Controller:
Controllers are representing a JavaScript
Constructor Function which can help to augment angular scope.
When a controller is used to the DOM model via
the ng-controller directive, Angular JS will instantiate a new Controller
object, using the specified Controller’s constructor function.
In
short, Controllers are the behavior behind the DOM model’s elements. And,
Angular JS will express the behavior in a clean & readable form.
Features of angular JS?
As I said ago, it
is a just framework to develop dynamic web apps. With that it is provide so
many features to developer as well users also. Let’s took look on these
features of Angular JS.
Provide Components: like; directives, reusability,
and localization.
Provide Backend
Processes: like; deep linking, from
validations, and server communications.
Main feature provided
as built-in facility: like; Injectable &
testable.
General features
are: like as below;
- Easy to learn and
implement.
- Stable API.
- Backend by Google.
- Nicely integrated
with CSS, HTML & jQuery.
- Two-way data
binding.
- Dependency
injection or management.
- Ready templates.
- Predefine Services.
- Abstracted the DOM.
- Unit test runner.
- Integration test
runner.
- Cross-module
communication.
- Animation support.
- AJAX/JSONP.
- RESTful API.
- MVC support.
- And many more
By these features I can assure you that the angular
JS is provide lot of things which all are very useful to create web –
application as efficiently. It’s also saves the memory as well as time of
developer with good result.
Example:
<html
ng-app = “myContactApp”>
<script src = “http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js”>
</script>
<body>
<div id =
“heading” ng-controller = “myContactApp”>
<h3> My Contact </h3>
</div>
<div id=
“form”>
<form>
First
Name: <br> <input type = “text” ng-model = “co.firstName”><br>
Last
Name: <br> <input type = “text” ng-model = “co.lastName”><br>
Contact
No: <br> <input type = “number” ng-model = “co.coNo”><br>
<button ng-click = “save ()”>save</button>
<button ng-click = “cancel ()”>cancel</button>
</form>
<p>form
= {{co}} </p>
</div>
<script src =
“myContactApp.js”></script>
<script>
var app =
angular.module(‘myContactApp’,[]);
app.controller (‘formCtrl’,
function ($scope)
{
$scope.master = {FirstName:
“abc”, LastName: “def”, CoNo: “9999999999”};
$scope.reset=function ()
{
$scope.user =
angular.copy ($scope.master);
};
$scope.reset ();
}
);
</script>
</body>
</html>
Conclusion
Angular JS is
everything for web – application developer. Because, it provides good
qualitative & interactive performances with every supporting files, &
codes. That’s why Angular JS framework is mostly common choice by the application developer. It’s allows two-way data binding, interaction with backend services.
It helps to create interactive applications. With supportive HTML, CSS &
JavaScript files & structure. I suggest that all developer, can just do
experience at least once with the Angular JS.
At Kensvalley, Our developers are using Angular JS to provide better user experience to clients web application.
