#04 Why Angular JavaScript is everyone's choice ?
Angular javascript
Introduction
AngularJS may be a JavaScript-based ASCII text file front-end net framework principally maintained by Google and by a community of people and firms to handle several of the challenges encountered in developing single-page applications. It aims to modify each event and therefore the testing of such applications by providing a framework for client-side model–view–controller (MVC) and model–view–viewmodel (MVVM) architectures, at the side of elements ordinarily employed in wealthy net applications.
AngularJS is the frontend of a part of the MEAN stack, consisting of MongoDB info, Express.js net application server framework, Angular.js itself, and Node.js server runtime setting. Version 1.7.x is on long run Support till July first 2021. afterward date AngularJS can not be updated and Angular (2.0+) is usually recommended instead.
The AngularJS framework works by presenting the machine-readable text terminology (HTML) page, that has a further custom hypertext mark-up language attributes embedded into it. Angular interprets those attributes as directives to bind input or output components of the page to a model that's described by commonplace JavaScript variables. The values of these JavaScript variables are often manually set inside the code, or retrieved from static or dynamic JSON resources.
AngularJS is made on the idea that declarative programming ought to be wont to produce user interfaces and connect package parts, whereas imperative programming is healthier suited to shaping associate degree application's business logic.The framework adapts and extends ancient hypertext mark-up language to gift dynamic content through two-way data-binding that enables for the automated synchronization of models and views. As a result, AngularJS de-emphasizes specific Document Object Model (DOM) manipulation with the goal of up testability and performance. New websites are being created day by day and here we share that we provide good services for Angular js development for all Js developers and it is a valuable thing that everyone can easily access our services through your PC day by day for creating new things everyday in the technical areas.
Services :
● Creation of a replacement gadget
● Compilation of the directives that adorn the DOM
● Linking of all directives to scope
AngularJS directives permit the developer to specify custom and reusable HTML-like parts and attributes that outline information bindings and therefore the behavior of presentation parts. a number of the foremost unremarkably used directives are:
ng-animate A module provides support for JavaScript, CSS3 transition and CSS3 keyframe animation hooks among existing core and custom directives. Since ng-* attributes aren't valid in markup language specifications, data-ng-* can even be used as a prefix. As an example, each ng-app and data-ng-app square measure is valid in AngularJS.
ng-app Declares the foundation part of Associate in Nursing AngularJS application, underneath that directives is wont to declare bindings and outline behavior.
ng-aria A module for accessibility support of common ARIA attributes.
ng-bind Sets the text of a DOM part to the worth of Associate in Nursing expression. as an example, displays the worth of ‘name’ within the span part. Any modification to the variable ‘name’ within the application's scope replicates instantly within the DOM.
ng-class Conditionally apply a category, betting on the worth of a Boolean expression. ng-controller Specifies a JavaScript controller category that evaluates markup language expressions.
ng-if Basic if statement directive that instantiates the subsequent part if the conditions square measure true. once the condition is false, the part is off from the DOM. When true, an identical to the compiled part is re-inserted.
ng-init Called once once the part is initialized.
ng-model Similar to ng-bind, however establishes a two-way information binding between the read and therefore the scope.
ng-model-options Provides standardization for the way model updates square measure done.
ng-repeat Instantiate part once per item from a set.
ng-show & ng-hide Conditionally show or hide part, betting on the worth of a Boolean expression. Show and conceal is achieved by setting the CSS show vogue.
ng-switch Conditionally instantiate one guide from a group of decisions, betting on the worth of a range expression.
ng-view The base directive liable for handling routes[10] that resolve JSON before rendering templates driven by mere controllers.
Benefits of Angular js
● To decouple DOM manipulation from application logic. The problem of this can be dramatically full of the method the code is structured.
● To decouple the shopper facet of associate application from the server-side. permits this enables, This permits development work to progress in parallel and allows for application of each side.
● To provide structure for the journey of building associate application: from planning the UI, through writing the business logic, to testing.
AngularJS implements the MVC pattern to separate presentation, data, and logic parts.Exploitation dependency injection, Angular brings historically server-side services, like view-dependent controllers, to client-side net applications. Consequently, a lot of the burden on the server is often reduced.
