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Angular vs React

Angular vs React


Angular and React are the most used modern JavaScript frameworks out there currently. Here's a look at their features and comparing the differences

                                        

1. Performance


Angular - Competitive, optimized with change detection


Angular performs worse, especially in the case of complex and dynamic web pages. The performance of Angular apps is negatively affected by the bidirectional data-binding. Each binding is assigned a watcher to track changes and each loop continues until all the watchers and associated values are checked. Because of this, the more bindings you have, the more watchers are created, and the more cumbersome the process becomes. However, the most recent update of Angular has greatly improved its performance, and it does not lose to React anymore. Moreover, the size of an Angular application is slightly smaller than the size of a React app.


React     - Competitive, optimized with Virtual DOM.


React's performance is greatly improved with the introduction of the virtual DOM. Since all virtual DOM trees are lightweight and built on the server, the load on the browser is reduced. Furthermore, since the data-binding process is unidirectional, bindings are not assigned watchers as in the case of Angular and so no additional workload is created.


2. Both are component-based model


3. Angular supports Dependency Injection but React does not support


4. Angular is a JS Framework whereas React is a JS library.


The full-fledged framework does not need any external libraries. React is a library for UI development and needs external libraries like Redux, React Router and Helmet for State Management, Routing and interaction with API. Also need external libraries for DI, data binding, form validation.


5. Angular uses NgRx for state management whereas React uses Redux or Mobx


6. Data binding is bidirectional in Angular (data is mutable) where it's unidirectional (data is immutable) in React


7. Angular uses Change Rendering Real DOM and Change detection. React uses virtual DOM for rendering


8. Unit test tools


Angular - Jasmine( Unit test FW), Protractor(Automation test FW), Karma (Test Runner)

React     - Enzyme, Jest( Unit test FW), React-unit


9. Both have Command Line Interface to help with development. Angular has Angular CLI and react has Create React App CLI


10. Angular was developed by Google and React by Facebook

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