Angular and React are about equally popular, but not identical in their characteristics and are not interchangeable.

Angular Framework vs. React Library: What’s the Difference

React became available to developers earlier: Facebook released it for mass use in 2013. Angular is a Google product and went public in 2016. The developers have had more time to get used to React and make the product easy completion. However, Angular is quickly catching up, and demand for it will undoubtedly increase in the coming years.

React used on platforms such AirBnb, Dropbox, Facebook, Instagram, Netflix, Whatsapp, Uber. Angular’s clients include CVS shop, Delta, Eat24, Google Express, NBA, onefootball.

Angular (MVC-framework) – software that allows you to build the project from the individual modules and components. React is a frontend library on open source integration, with a significant number of packages. Data binding in React is done in one direction, in Angular in two directions. React is based on JSX + JS (ES5 / ES6), Angular is built on HTML and TypeScript.

React uses dynamically typed language, Angular – a statically typed. Dynamically typed languages are easier to learn, writing code for them less time-consuming, they are flexible and provide developers more scope for creativity. JavaScript (ES6), on which React is built, has been the mainstream programming language since 1995. It contains convenient modules, classes, literals and spread operators inside it, the structure of the code is extremely clean.

TypeScript, which Angular is based on mass use in 2012 and does not rely on the class system. If a person has previously worked only with dynamically typed programming languages, it will be difficult for him to master statically typed TypeScript. When attracting new developers to a project, you will have to spend additional time training them.

The React database contains over 100,000 codes and 300 ready-made solutions. Angular has a base of 1,800 solutions, this framework is characterized by a skeleton structure and impressive dimensions.

For a visual comparison, you can see the table below:

React vs. Angular: which is better for web development?

Both products are able to work with the native mobile applications and web applications. React uses React Native for native products, and React Native Renderer for cross-platform. Angular uses NativeScript to create native development, and Ionic Framework for hybrid development.

The entry point for Angular looks like this:

const appRoutes: Routes = [
{ path: 'home', component: HomeComponent },
{ path: 'posts', component: PostsComponent },
{ path: 'form', component: FormComponent },
{ path: '', redirectTo: '/home', pathMatch: 'full' }
]</pre>
 
@NgModule({
declarations: [
AppComponent,
PostsComponent,
HomeComponent,
FormComponent,
],
imports: [
BrowserModule,
RouterModule.forRoot(appRoutes),
ApolloModule.forRoot(provideClient),
FormsModule,
ReactiveFormsModule,
HttpModule,
BrowserAnimationsModule,
MdInputModule, MdSelectModule, MdButtonModule, MdCardModule, MdIconModule
],
providers: [
AppService
],
bootstrap: [AppComponent]
})

@Injectable()
export class AppService {
username = 'Mr. User'
}

Entry point in React:

const appStore = AppStore.getInstance()
const routerStore = RouterStore.getInstance()</pre>
const rootStores = {
appStore,
routerStore
}

ReactDOM.render(
<Provider {...rootStores} >
<Router history={routerStore.history} >
<App>
<Switch>
<Route exact path='/home' component={Home as any} />
<Route exact path='/posts' component={Posts as any} />
<Route exact path='/form' component={Form as any} />
<Redirect from='/' to='/home' />
</Switch>
</App>
</Router>
</Provider >,
document.getElementById('root')
)

Pros and cons of the framework Angular

Pros and cons of the framework Angular

React library: advantages and disadvantages

React library: advantages and disadvantages

Search engine bots are more comfortable browsing in React than Angular. This is necessary for specialists interested in SEO promotion and improving user interaction with the resource.

Rendering, component architecture, directionality and dependency classes (and other features)

React uses Virtual DOM, which is more rational and economical than Real DOM. DOM – is a way to provide the contents of the HTML-document object format, which is provided to control the interface. When among the contents is required to detect a specific fragment, Real DOM sequentially updates the tags, reducing the performance of the application. Virtual DOM operates according to the following algorithm:

  • creates a copy of the DOM;
  • processes;
  • matches with the source.

If the matching results do not match, the Virtual DOM updates only one desired piece of HTML.

Angular has no such advantage. The data stream is divided in two: the client side (browser) provides rendering and the server side is responsible for creating directives, loading code and services.

Site pages on Virtual DOM load faster. Traffic on mobile devices is noticeably reduced.

Angular is a framework and React JS is a library. In practice, the difference is that React is focused on the Model-View-Controller format. Model provides information, View is responsible for displaying information to users. The role of the Controller is to interpret user actions and induce the Model to implement corrections in accordance with the interpretation.

If the project is created on React, the developer will have to:

  • search and implement libraries for the consistent implementation of tasks;
  • customize the functional component of the application for the needs of the libraries;
  • make efforts to attract developers to the project.

Implementing the project architecture will be time consuming. The low-level API needs a lot of configuration.

Angular will not have such difficulties: the backward compatibility of the libraries is provided by the high-level API, the programmer from the outside will join the development instantly. Therefore, full-fledged frameworks are valued higher than libraries.

Passing data to React is one-way. Each object is encapsulated – refers to final procedures that do not require any action from users until the end of the work. The library provides the ability to copy and transfer states. The properties of the registered objects can be restored on a new device: you need the user to open the application and report the state of the components. The rendering will be indistinguishable, the displays will display the same picture.

Here is a visual code sample to illustrate the difference between the solutions. In Angular, computed properties are defined like this:

import { Injectable } from '@angular/core'
import { BehaviorSubject } from 'rxjs/BehaviorSubject'</pre>
@Injectable()
export class HomeService {
message = 'Welcome to home page'
counterSubject = new BehaviorSubject(0)
// Computed property can serve as basis for further computed properties
counterMessage = new BehaviorSubject('')
constructor() {
// Manually subscribe to each subject that couterMessage depends on
this.counterSubject.subscribe(this.recomputeCounterMessage)
}

// Needs to have bound this
private recomputeCounterMessage = (x) => {
console.log('recompute counterMessage!')
this.counterMessage.next(`${x} ${x === 1 ? 'click' : 'clicks'} since last visit`)
}

increment() {
this.counterSubject.next(this.counterSubject.getValue() + 1)
}
}

In React, the process looks simpler:

import { observable, computed, action } from 'mobx'</pre>
export class HomeStore {
import { observable, computed, action } from 'mobx'

export class HomeStore {
@observable counter = 0
increment = () => {
this.counter++
}
@computed get counterMessage() {
console.log('recompute counterMessage!')
return `${this.counter} ${this.counter === 1 ? 'click' : 'clicks'} since last visit`
}
}

In Angular, objects communicate within services, which are building blocks of modules. To create large-scale applications, demand plug-in architecture. Each module allows you to solve several tasks with identical functionality. The information processing speed increases, the final code size decreases.

Based on the Model-View-View-Model various problems are solved in one section of the application, leveraging the same set of information. The bi-directional direction of data transmission is determined by the dependence of the functions. Each individual procedure can trigger a different process.

When upgrading to an updated version of a React product, it’s more convenient Different versions can be combined without any problems. It is permissible to connect libraries of different versions to the application and update outdated ones by inheriting their properties.

Projects Angular dependent on previous versions and components. It is impossible to go directly from the old version to the new one: updates are carried out sequentially and separately, the application significantly increases in size.

Conclusions

React and Angular differ in terms of interaction within the community. This is a key aspect for novice developers – if the community is large, active, ready to help newbies, any problem is solved faster than alone.

There is no definitive up-to-date documentation for React. The product runs on open source, fresh library are added daily. For experienced developers this is a definite plus, but it is not easy for beginners to understand the properties, functions, and processes of using fresh libraries. New React modules appear as a developer solves a specific problem within his project and creates a new library. Then he shares his best practices in the public domain, accompanying them with a short guide. If another developer has questions regarding the use of this library, he should ask the author.

The Angular easier to find the information. Beginners do not have to turn to the experts from the community. The product is accompanied by detailed documentation, numerous guidelines have been published for it. If the documentation is not detailed or clear enough, you can consult with community members on any popular platform where developers exchange experience.

Choosing between Angular or React, specialists focus on the specifics of the project. Both approaches have strengths and weaknesses, as well as many thousands of developers community from dozens of countries. Both React and Angular are evolving and improving. React came to the market three years earlier, so the developers managed to improve it and make it more convenient to use. But Angular can quickly bridge the gap and offer users meaningful, unique benefits.