Positives – AngularJS is an open source framework that follows the MVC architecture as well as MVVM architecture. It is powered by Google, and it is the oldest of the four frameworks. Naturally, it is the most popular among them and has the largest community. Therefore, for a code as well as a learner’s perfective, AngularJS is in the sweet spot. It is best for developing single page applications. The development is quick due to code reusability feature, and you can do a straightforward UI design. Moreover, there is no need for two-way binding as it is clear from the second version of AngularJS. Furthermore, it is easy to test codes at any point, and it has dependency injection and robust template building solution.
Negatives – AngularJS is suitable and swift for static pages, but as soon as the pages start to interact with multiple elements and become dynamic, AngularJS slows down which is not good from the developer’s perspective. The third-party integration is still quite complex, and there are serious concerns about its performance. Therefore, AngularJS 2 is completely different from the original version which created a lot of controversies. It was not updated or redesigned, but it was rewritten completely. AngularJS 2 has come out recently, and you will find a steep learning curve. Even the older AngularJS programmers have become a learned due to the drastic changes in the latest version.
Negatives – It is not exactly a full-fledged framework. It is more of a library. The use of Flux architecture is not the wisest of decisions as not many developers are used to it in the current scenario. On top of that, it uses JSX to render components which is what the developers hate. The learning curve becomes steep and integrating with popular MVC frameworks needs a lot of configuration.
Negatives – It also allows 3rd-party templating, and there is no option for two way binding which many see as its con. However, one needs to use Marionette with for smooth development. The fact that the Views manipulate DOM directly is quite harder from development’s perspective. That is why BackboneJS is specifically not so popular among developers, and they prefer Ember over it.
Positives – EmberJS comes with an inbuilt router which is the best among all the frameworks. The component model is better than AngularJS as it is simpler and the API is easy to understand execute.
Negatives – But somewhere down the line, it has a lot of similarities with AngularJS due to which it sometimes gets lost in the shuffle.
Parameter-Based Differences –
For dynamic UI binding, ReactJS has straightforward linking system followed by AngularJS which is slightly slow. For reusable components, EmberJS is the best due to its widget-based approach. It is followed by AngularJS and ReactJS. For routing, ReactJS is better though EmberJS is more powerful. It is complex in AngularJS. ReactJS has one-way data binding, the rest has two-way.
Final Words –
The popularity of AngularJS is still unharmed, but EmberJS poses a threat as most of the features are similar and there are some new features that can favor it in the long run. But the kind of revolutionary development AngularJS team is bringing, it does not look like any other framework can give it any competition in the near future.