AngularJS is a JavaScript-based open-source front-end web application framework mainly maintained by Google and by a community of individuals and corporations to address many of the challenges encountered in developing single-page applications. The JavaScript components complement Apache Cordova, a framework used for developing cross-platform mobile apps. It aims to simplify both the development and the testing of such applications by providing a framework for client-side model–view–controller (MVC) and model–view–viewmodel (MVVM) architectures, along with components commonly used in rich Internet applications.

why Angular

AngularJS is built on the belief that declarative programming should be used to create user interfaces and connect software components, while imperative programming is better suited to defining an application’s business logic.[5] The framework adapts and extends traditional HTML to present dynamic content through two-way data-binding that allows for the automatic synchronization of models and views. As a result, AngularJS de-emphasizes explicit DOM manipulation with the goal of improving testability and performance.

Unique advantages

Let’s define, what is so special about the Angular web development. Why would you prefer to build your product within this environment?

Code consistency is an important goal to strive for in any code base. If you or your team have to support production applications then you understand how important consistency is and why it leads to better maintenance. So what does Angular offer that provides consistency for teams? The overall framework is based on components and services that you can think of as Lego blocks. All components and services start out the same way.

Consistency brings productivity into the picture as well. Developers don’t have to worry as much about if they’re doing it the “right way”. Components and services look the same overall, reusable application code is put in service classes, ES6/ES2015 modules organize related functionality and allow code to be self-contained and self-responsible, data is passed into components using input properties and can be passed out using output properties, etc.

Angular is all about organizing code into “buckets”. Everything you create whether it’s components, services, pipes, or directives has to be organized into one or more buckets. If you come from a “function spaghetti code” background in your organization, the sanity that Angular and TypeScript bring to the table can be quite refreshing. The “buckets” I refer to are called “modules” in the Angular world. They provide a way to organize application functionality and divide it up into features and reusable chunks. Modules also offer many other benefits such as lazy loading as well where one or more application features are loaded in the background or on-demand.