What is Angular framework?

Why Do I Need a Framework?
If you’re not sure what a JavaScript (or client-side) framework is, that’s a technology providing us the right tools to build a web application while also defining how it should be designed and how the code should be organized.

Most JS frameworks these days are opinionated, meaning they have their own philosophy of how the web app should be built and you may need to spend some time to learn the core concepts. Other solutions, like Backbone, do not instruct developers on how they should craft the project, thus some people even call such technologies simply libraries, rather than frameworks.

Actually, JavaScript frameworks emerged not that long ago. I remember times where websites were built with poorly structured JS code (in many cases, powered by jQuery). However, client-side UIs have become more and more complex, and JavaScript lost its reputation as a “toy” language. Modern websites rely heavily on JS and the need to properly organize (and test!) the code has arisen. Therefore, client-side frameworks have become popular and nowadays there are at least dozen of them.

What is Angular?
Angular is a Javascript framework that is used by developers for building web, desktop, and mobile applications. Development of Angular applications involves usage of Typescript, which is a superset of Javascript, along with HTML, CSS etc. The code written in Typescript compiles to Javascript and is rendered in the browser. Angular is one of the most popular Javascript frameworks for building web applications. There have been three popular versions of Angular to date — Angular 1 (also known as AngularJS), followed by Angular 2, which was succeeded by Angular 4.

AngularJS and Angular 2 are very different from each other. However, Angular 2 and Angular 4 share many similarities. Angular 4 also has backward compatibility with Angular 2, that is, the code written in Angular 2 will work fine in Angular 4.

You must be wondering that why did Angular 3 not get released? Well, there were some versioning issues with the modules internally. Hence, the Angular team decided to skip the release of version 3 of Angular and directly went on to release Angular 4. Version 5 and 6 of Angular have also released recently, and Angular 7 will be released in September or October 2018. Since Google has pledged to upgrade Angular twice every year, new versions of Angular come up frequently. However, Angular 4 is as of now the most popular among them and is widely used. All the Angular versions from 2 and above are backward compatible.

Advantages of using Angular
There are several advantages of using Angular, some of which are mentioned below.

Angular supports Single Page Applications
Single Page Applications are a type of web application that loads a single HTML page, and the page is updated dynamically according to the interaction of the user with the web app. Single Page Applications, also known as SPAs, can communicate with the back-end servers without refreshing the full webpage, for loading data in the application. SPAs provide better user experience as no one likes to wait too long for reloading of the full webpage. Angular supports the development of SPAs, and hence is worth learning!

Two-way data binding
In Angular >=2.x, the two-way data binding is implemented using the ngModel directive. The primary benefit of two-way data binding is almost automatic retrievals from (and updates to) the data store. When the data store updates, the UI also gets updated immediately.

Modularity in Angular
You can think of modularity in Angular as if the code is organized into “buckets”. These buckets are known as “modules” in Angular. The application’s code is divided into several reusable modules. A module has related components, directives, pipes, and services grouped together. These modules can be combined with one another to create an application.

Modules also offer several benefits. One of them is lazy-loading, that is, one or more application features can be loaded on demand. If properly used, lazy-loading can increase the efficiency of an application a lot.

Enterprise applications can grow very large, and hence dividing the labor across multiple teams could be challenging. With modules, the code can be kept organized and division of labor can be done properly while maintaining the code consistency.

Reduced coding
Many web developers want to write short but effective code. Angular supports MVC (Model View Controller) architecture, where the developer has to just split his/her code to fit into the MVC structure, and the rest is taken care by Angular. There is no need to write the MVC pipeline.

Declarative User Interface
Angular uses HTML for defining the user interface of an application. HTML is intuitive, declarative, and less complex than Javascript. In a declarative user interface, the presentational logic is separated from the imperative logic. We don’t need to be concerned about the program flow and the order of loading of components on the webpage. We can simply define the layout of the page, make it clear where the data is being bound, and what it is being bound to. Angular will take care of the rest.

Easy integration
Angular integration is pre-built into several frameworks, for example, Ionic, Telerik’s Kendo UI, Wijmo, etc. Hence, integration of third-party features is easy with Angular. So, if you want to add some high-quality user interface components, you can easily do so by using any of the above-mentioned frameworks!

Cross-Platform

Angular can be used to make any of the following types of applications:

Web applications: Angular can be used for web development. Also, from Angular 5 onwards, progressive web applications can also be developed. Such applications have high performance and can work offline as well.

Native mobile applications: Native mobile applications can be built using Angular.

Desktop applications: Angular can be used to create desktop-installed applications for Mac, Windows, and Linux.

Popular websites developed using Angular
There are several large and popular websites that are built using Angular. Some of them are as follows:

The Guardian
PayPal
Upwork
Netflix
YouTube for PS3
Lego
Freelancer
Weather
jetBlue
iStock Photo
There is a huge demand for Angular in the market, which has increased jobs for people who are skilled in Angular.

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What is a Portal?

Servicenow Blogs Written by Kyros Academy in chennai
What is a Portal?

A portal is a ServiceNow user interface (UI), built using the Service Portal framework, which provides an alternative user experience to the standard UI. It is an intuitive way for users to interact with the underlying Now Platform using a minimum number of clicks from any device: desktop, tablet, or smartphone. Portals allow users to access any platform component including:

Selected records from important tables, such as all tasks assigned to the user
Metrics, reports, and analytics
Service Catalog
Knowledge Base
Surveys
User profile
Approvals
And more!

A portal is easily branded and themed to match your organization’s branding.

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Cloud Computing Benefits

what is cloud computing
Cloud computing is a method of delivering technology to the consumer by using Internet servers for processing and data storage, while the client system uses the data. While in the past, software had to be shipped on a CD-ROM, and updates had to be downloaded afterwards to keep the software secure and bug-free, cloud computing allows vendors to deliver software and services over the Internet without the need for traditional media or installation. A related idea is called Software as a Service, or SAAS. When the Internet, as a network, became capable of transmitting large amounts of data in a short period of time, it became possible to offer not just simple web pages, but entire services online.

The client system could be a desktop computer, a laptop computer, a phone, or a TV. Cloud computing allows the client to be a very thin client. A thin client is a computing device which has very little computing power. Thin clients can be either hardware based (perhaps a refrigerator terminal), or software based (most often the browser program is considered a thin client).

Benefits of cloud computing
Accessibility and mobility
One of the greatest advantages of the Cloud is the accessibility of resources (data, applications, etc.). Indeed, users can access their tools from anywhere, at any time and from any type of device (ATAWAD logic) as long as they are connected to the internet.

Since the data and applications are no longer stored locally, data will always be available, even if you lose access to your desktop or laptop computer. Also, you won’t lose any data in the event of a failure of your serves since the Cloud service provide will take care of backing them up.

Some of the primary services that have found success in the Cloud include email/calendar services (Office 365, Google Suite, Zimbra), ERP/CRMs (Salesforce, Sage, Oracle), IaaS services (Infrastructure as a Service, including Amazon Web Service and Microsoft Azure).

Flexibility
Thanks to Cloud Computing, services become completely flexible and can be adjusted at any time depending on the needs and business of your company. Your company can reduce or increase resources available, paying only for what it consumes.
Updating and scalability
Another important advantage of Cloud Computing is that your service provider, in addition to taking care of maintenance, takes care of all updates of the service, which allows you and your employees to concentrate more efficiently on your assignments, your jobs, and at the same time, optimize your productivity.
Controlled costs
The last advantage we’ll mention in this article is that Cloud Computing allows for greater control of costs relating to your IT infrastructure. Indeed, your company can adjust the resources allocated to its infrastructure depending on its needs by increasing or decreasing the resources available.

By subscribing to Cloud Computing offers, your company pays only for what it consumes (Pay as You Go). Finally, the company no longer has to deal with costs relating to maintenance and renewing computer equipment (servers, computers, etc.). With the Cloud, subscribing companies can considerably reduce their IT investments (costs relating to CapEX) and optimize their operational and business costs (OpEX).

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Who uses Service Portal?

Servicenow Blogs Written by Kyros Academy in chennai
Who uses Service Portal?

Several different kinds of users can configure a portal.

Limited coding: Service Portal was designed so that even users with limited coding ability or knowledge of the platform UI could set up a portal.
ServiceNow Experts: Users with an understanding of the ServiceNow platform can create portals, set up URL redirects, and view all the components of the portal in a table. Most portal configuration takes place in the Service Portal configuration page, but in specific circumstances, Service Portal administrators may need to do additional configuration directly within the platform.
Developers: Advanced customizations and new widget creation are tasks for a developer or someone who understands AngularJS and Twitter bootstrap.

In all cases, the user configuring a portal must have the admin or sp_admin role.
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