Presentational vs container components

In react the components are divided into two categories: presentational components and container components. Each of these have their own characteristics. Let’s look at both of these components in details.
Presentational components

  • Mainly concerned with how things look.
  • Have no major dependencies on the rest of the app.
  • No connection with the specification of the data that is outside the component.
  • Mainly receives data and callbacks exclusively via props.
  • May contain both presentational and container components inside it considering the fact that it contains DOM markup and styles of their own.

Example:
For example, the below code denotes a presentational component, and it gets its data from the props and just focuses on showing an element.

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// presentational component
const Users = props => 
      (<ul>   
         {props.users.map(user => 
            (<li>{itr}</li>    ))
         }
      </ul>)

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Container components

  • Mainly concerned with how things work.
  • May contain both presentational and container component but does not have DOM and markup of their own.
  • Provide the data and behaviur to presentational or other container components.
  • Call flux actions and provides these as callbackss to the presentational component.
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// container component
classUsersContainerextendsReact.Component{constructor() 
   
    this.state = {   
       itr: []    
    }
  
 componentDidMount() {   
    axios.get('/users').then(itr=>this.setState({ users: itr}))    
    )  }
render() {
  return<Usersusers={this.state.itr} />  
  }}

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Finally at the conclusion we can conclude in simple terms that the presentational components are concerned with the look, container components are concerned with making things work.



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Executive Software Developer at Cavisson Systems

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