AngularJS Training in BTM Layout

AngularJS:

AngularJS Basics: For Those Who Prefers jQuery:

• When AngularJS first appeared, it came along as a crap. It looked like many broken pieces which have to be joined together.
• As this framework for Building Web Applicationsprogressed, it has gathered a lot of followers around the world.
• An excellent documentation with cool examples was added to make the framework look simple and user-friendly. It performed great in learning trial apps like TodoMVC Project.
• However, in case the user has only interacted with jQuery libraries before, it might be difficult for him to master AngularJS fast.
• It would be unfair to ignore the advantages of using AngularJS:
• MVC done right
• Declarative user interface
• POJO data models
• Directives as the way to add functionality
• Flexible when using filters
• No need to write huge codes
• In-place DOM manipulations
• Relevant service providers
• Context aware communication
• Prepared unit testing

Why AngularJS Will Fail:

• Despite all of the benefits mentioned above, Angular was never good enough for all sorts of programs and applications.
• For instance, it would make no reason to ask AngularJS developersto come up with the game or a computationally intensive math program.
• This framework would not fit your specific problem domain. At the same time, it was very effective for generic web applications, so AngularJS served as a viable framework to build upon for a while.
• The basic cause of failure is not the lack of gaming abilities, of course. It is rather the difficulty in usage.
• First, jQuery was brought into the place with own JS libraries that assisted in coping with mundane commands of JS:
• Class look-ups
• Selective elements
• Animation
• AJAX
• jQuery appeared and helped developers with the repetitive operations. That was the first sign that Angular JS will be replaced.

Angular 2 as a Saviour

• It all lasted until the day Angular 2 was announced to be released.
• Due to the fact Angular 2 was not expected to be compatible with its first version, a lot of changes arrived.
• The main question was like if it would be better to go on developing using AngularJS or quickly switch to Angular 2. Sure thing:
• we don’t have to catch up with the latest versions as soon as they are released, but in this case, it really makes sense to think about Angular 2 because of the potential Angular JS failure.
• If the app is small, it might be not that difficult to conduct any changes. But what if we’re talking about a large-scale project? What should AngularJS developers do then?
• After collecting valuable feedback around the web, there are few things worth mentioning that might prove the superiority of Angular 2.
• This one seems more prepared for the current state of web standards as well as its future.
• Under the future standards, experts usually mean ES6\7, immutability, components, shadow DOM, service workers, mobile compatibility, modules, typescript, etc.
• It is true so far that Angular 2 has removed a range of basic features of the previous versions.
• Well, perhaps the controllers, $scope, directives, and the module definition are gone. Some common things like ng-repeat also look different now.

Top Advantages of Switching to Angular 2:

• Anyway, these changes are positive as Angular 2 is more ready for the future web requirements.
• I would not recommend beginning a project on AngularJS today as it may ruin tomorrow.
• To make you feel more comfortable with choosing Angular 2, let me tell you that Google has already launched a project with this framework.
• If you are searching for stability, you may turn to react\elm.
• When one asks to name the basic advantages of Angular 2, experts recall the following features:
• Support for web components
• Usage of Typescript
• Great performance
• General simplicity of the interface.
• If you ask me, I would advise Angular 2 for large-scale projects.
• Yes, it requires more time to study it. Be ready that very little documentation would be available, but that is not something specialists who created this framework cannot solve.

JavaScript vs Typescript:

• Many people wonder whether Angular 2 would help for Ionic as well as whether Ionic 2 is Javascript or Typescript. These two are interrelated, but one has to mind the nuances.
• While AngularJS was all about JavaScript, Angular 2 works with both JS and Typescript.
• So, it makes sense to compare JavaScript against Typescript as Angular 2 is based on it. Anyway, Angular 2 official website comes along with documentation and articles in Typescript.