Angular vs. React: Choosing the Right Framework
Effective
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I maintain a centralized knowledge base of web technology features. Below is the trade-off report between Angular 1.4 and React.

If you would like to contribute knowledge or improve the accuracy of this report, please go to this link and complete a questionnaire about React, Angular or any technology you know.

http://www.dancancro.com/technology-questionnaires/

AngularJS 1.4 provides these benefits that ReactJS doesn’t

Quality * Well tested before a release (top 10% in class) (over 2000 apps) * Many unit tests (top 10% in class) (over 4000 unit tests)
Help * Dedicated/searchable user group for questions, using Stackoverflow * Dedicated chatroom
Code Modularization * Reusable components, for UI * Reusable components, for UI, using custom HTML tags (Called directives) * State and state-modifying code in same place * Use multiple apps on the same page * Composable (top 10% in class) * Client-side dependency injection * Has no dependencies (Comes with a built-in version of JQuery)
Model * Doesn’t use setters and getters for data binding * Supports dynamic, validated fields * Declarative templates auto-update as the model changes * Data is separate from view state * Mock API
View * Decouples view and view model (using route configurations)
Control * MVVM * Client-side routing * Client-side handling of objects in transitions, instances are saved to a common scope * Redirect after a POST (doesn’t need)
Syntax, language and coding * Unicode strings support
Development and debugging * Supports ICU MessageFormat interpolation syntax * Custom URL parameter serialization * Easy to test, logic (top 10% in class)
Implemented Functionality * Move elements between views
Performance * Async template rendering/loading support * Instrumentation * Object distribution * Fast to load app (top 10% in class)

ReactJS provides these benefits that AngularJS 1.4 doesn’t

Quality * Statically analyzable
Code Modularization * Uses inheritance * Template and related logic in the same files
Model * Virtual, shadow DOM * Single source of truth
Support for things * Runs on the server * Runs on IE8
Development and debugging * Low accidental complexity (top 10% in class) * Easy to test, html templates (top 10% in class)
Implemented Functionality * SEO (search engine) crawlable
Performance * Lazy (on-demand) loading of client-side code * Lazy (on-demand) loading of client-side code, JavaScript * Fast to run app (top 10% in class)

ReactJS and AngularJS 1.4 both provide these benefits

Quality * Sponsoring company (Facebook)
Help * There’s a book about it
Code Modularization * Reusable components * Reusable components, prevents global variables * Reusable components, using mixins * Reusable components, for UI, stateless * Hierarchical components
Model * Two-way data binding * Unidirectional data flow * Reactive * Only changed list items are updated
Support for things * Server operating system independent * Can run without plugins in a browser
Syntax, language and coding * ++ and — operators * += and -= operators * += for strings * Closures (lambdas) * Collection objects, arrays * Collection objects, arrays, of primitives * Event driven * Functional * Functional, with anonymous functions * Functions can be called above where they are declared * Functions can nest * Functions can take variable # of parameters * Only requires one name per function parameter * Object oriented * Object oriented, supports prototypal inheritance * Short-circuit evaluation * String addition * Typed, dynamically * Typed, dynamically, with automatic type conversion * Typed, dynamically, with duck typing
Development and debugging * Automatic memory management * You can see changes without recompiling * State isn’t lost during recompilation (if it happens) * Unopinionated (top 25% in class) * Little boilerplate (top 10% in class) * Large ecosystem of good packages (top 10% in class)
Performance * Handles concurrency (synchronization), using threads
Security * Safe from stored cross-site scripting (xss) attacks

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