First thing first, we need to clear the concept that every library is meant to solve certain pain points of a developer, so we can’t say particular one is faster.
However, let’s see what makes AngularJS and ReactJS frameworks popular.
1- Framework, components usability
Angular uses Model View Controller (MVC), this architecture offers: the model, the view, and the controller components. But also gives reusability of these components.
React only use view layer to represent data whereas flux manages the data flow. This framework is easy to use with added flexibility. Simple programming with high performance.
2- Dependency, Angular has an edge due to ‘Dependency Injection’
Angular being an extensive framework manages dependency all on its own but React needs an additional set of tools to handle dependency.
Angular has ‘Dependency Injection’ which defines how components would get a hold on their dependencies.
3- Language, extensions for ease
4- Data rendering and binding
Expect client-side rendering and two-way data binding in angular. Server-side rendering and single way data binding are for React.
5- React is more effective than Angular
In terms of speed, ReactJS
is a better option. To track DOM changes, AngularJS develops watchers each time data binding happens. This makes the process slow especially if there are multiple requests in the queue.
React has Virtual DOM which processes the changes before updating. That is why, even if the number of requests increase, the process efficiency doesn’t drop. Hence, for changes calculation, Virtual DOM is much more efficient and quick.
Some popular websites on AngularJS are YouTube, Vevo, Freelancer, Weather and Sky Store. Facebook, Instagram, Khan Academy, New York Times, Airbnb and Flipkart are developed on React.