This problem has been nailed down to a large extent with the use of the ngUpgrade approach. The ngForward approach will definitely cause problems for bulky Angular 1.x applications in the long run. However, this approach may not be comfortable for some as concerns over its maintainability and backward compatibility with the future Angular versions could be an issue. Using ngUpgrade approachīy using the ngForward approach, we can write the code in the Angular 2.0 way on top of the existing Angular 1.x applications. Heading = "Welcome to Angular 2.0 framework" Īt this point, we are all set to use Angular 2 features in the existing Angular 1.3 app. app/app-component.ts import from 'my-angular2-app', Lastly, we are exporting the AppComponent class, which is used as a controller class. The styleUrls defines the path where the stylesheet CSS file is located which styles the text and the element on the template. The templateUrl defines the path where the actual HTML template file is located. The selector defines the tag that loads the app in the body section of the index.html as shown below. Then we will use the decorator which has selector, templateUrl, and styleUrls. In the following example, app/app-component.ts, we are first importing Component from package. This whole concept has now been lumped into Components in Angular 2. Those who are familiar with Angular know this very well-Angular 1.x uses directives, controllers, and scope for building an application. Angular 2 has the three core concepts: Components, Dependency Injection, and Bindings. Let’s take a look at the following examples on Angular 2 for novices. But migrating from Angular 1 to 2 could also be harder for developers as it could mean abandoning all their previous Angular coding knowledge in order to catch up and stay updated with Angular 2. However, Angular 2 is very straightforward developers migrating to it could kickstart their work on this framework within three to four days. It would typically take a week for developers to learn Angular 1.x. Straightforward and easier to learnīased on blogs and articles from Angular developers, I can conclude that Angular 2 is easier to learn compared to 1.x. This combination has all the encouraging features which are capable enough to meet not only the day-to-day web app development expectations but also the future challenges in web development. Its biggest advantage is that it’s less susceptible to run-time errors due to the presence of types in the language. Angular 2.0 code is written in TypeScript which ultimately gets compiled into the JavaScript code. main ECMAScript version). TypeScript is a very robust language maintained by Microsoft. The future of web developmentĪngular 2.0 is implemented in TypeScript (a language which is the superset of JavaScript) and ES2015/ES6 (i.e. Angular 2 is designed with an objective that will make it robust enough to be able to adapt to future mobile and smartphone technology. Therefore, the necessity to update Angular with better performance over its predecessor frameworks is inevitable. Advanced HTML5 Hybrid Mobile App Framework), issues with performance and user experience still didn’t attract many mobile users. Though some support issues are addressed when using Ionic (i.e. Let’s face it, Angular 1.x were never built with adequate mobile or smartphone support. Adequate support for mobile or smartphones In Angular 2, improvements in data binding techniques increased overall app performance and operating speed at data exchange. Better performanceĪngular 1.x’s data binding concepts have lots of complaints and performance dissatisfaction due to delays and bottlenecks. The following are the advanced features which make Angular 2 better than previous versions. What could be the reason behind re-writing an entire framework that’s backward incompatible? It’s not that the Angular team had no work to do and that they are trying to “reinvent the wheel” after writing Angular 1.x-I’d say, if Angular 1.x is good then Angular 2 is an improvement! The new Angular framework is a complete re-write of the existing Angular 1.x framework and will not be backward-compatible with the applications built in previous versions. Angular 2.0 has just been officially released!Īs of this writing, Angular 2 is in its final release version and sooner or later, all applications built in Angular 1.x will be required to be migrated to version 2 in order to be in sync with the latest Angular technology.
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