Termed as ‘the next generation UI Framework’ by its creators, Aurelia is very well received due to some of its features. Even though Aurelia is a full framework, it encompasses a number of libraries that work in tandem with well-defined interfaces in place, making it modular and flexible, a feature which was absent in Angular as it was ideally constructed as a monolithic framework with all components draped in a single bundle. Further, there isn’t any need to specify the controllers of view-models, unlike in Angular. The flexibility of Aurelia makes it an easy to use framework and a perfect alternative to Angular.
Vue.js is an open-source framework put together primarily to build user interfaces (UI). Released in 2014, Vue.js was created on the idea of extracting the best features of Angular and build a lightweight framework. Even though recent versions of Angular have reached considerably low sizes, Vue.js easily beats Angular in size as a full-featured Vue project is lightweight as compared to an angular-cli generated project. Moving over to flexibility, Vue is much more flexible than Angular and gives freedom to developers on the ability to structure their application. Finally, Vue.js is an easy to learn framework, unlike Angular which has a slightly steeper learning curve.
Polymer is an open-source JS library created to build web applications using components. It has received a number of stable releases and is being developed by Google developers and a number of contributors from GitHub. The popularity of Polymer can be comprehended from the fact that companies such as Netflix, Electronic Arts (EA), Coca-Cola, IBM, and McDonald’s employ Polymer, along with Google services such as Google Play Music, YouTube and its part YouTube Gaming, and the new Google Earth. This is due to its features such as a lightweight system, flexible layout components, and an easily approachable ecosystem.
Ember.js is an open-source JS web-framework released in December 2011. It is popular among developers as it helps them create scalable web applications, using common idioms into the framework. The framework is based on the Model–view–viewmodel (MVVM). Many popular websites and applications such as LinkedIn, Vine, Twitch, Chipotle, Apple Music and Discourse use Ember. This is due to an easy to understand API, easier access to jQuery’s features and a set of auto-updating templates. But the biggest drawback of Ember is its size, which might make it an overkill to use on simple projects.
Sencha Ext JS
Sencha Ext JS is an application framework used to build interactive web-applications for multiple platforms. While it is a full framework to build single-page applications, it can also be used as a minimal component framework to create dynamic grids on static pages. Even though it was created as an add-on library extension in 2007, newer versions reduce dependencies on external libraries and make their use non-compulsory. Latest updates enable the framework to be used both as a single script and as a supplement for application building with Sencha Cmd.
For many developers, the choice of a framework may not matter, but in the end, the material decides how strong the building will be. Each framework or library comes with its own set of pros and cons, and it is for the developers to decide on which framework they wish to use. While Angular has seen its share of success ever since its release, there are many alternatives available which have been slowly gaining momentum.