MOCKSTACKS
EN
Questions And Answers

More Tutorials









React Variations of Stateless Functional Components


const languages = [
 'JavaScript',
 'Python',
 'Java',
 'Elm',
 'TypeScript',
 'C#',
 'F#'
]
// one liner
const Language = ({language}) => <li>{language}</li>
Language.propTypes = {
 message: React.PropTypes.string.isRequired
}
/**
* If there are more than one line.
* Please notice that round brackets are optional here,
* However it's better to use them for readability
*/
const LanguagesList = ({languages}) => {
 <ul>
 {languages.map(language => <Language language={language} />)}
 </ul>
}
LanguagesList.PropTypes = {
 languages: React.PropTypes.array.isRequired
}
/**
 * This syntax is used if there are more work beside just JSX presentation
 * For instance some data manipulations needs to be done.
 * Please notice that round brackets after return are required,
 * Otherwise return will return nothing (undefined)
 */
const LanguageSection = ({header, languages}) => {
 // do some work
 const formattedLanguages = languages.map(language => language.toUpperCase())
 return (
 <fieldset>
 <legend>{header}</legend>
 <LanguagesList languages={formattedLanguages} />
 </fieldset>
 )
}
LanguageSection.PropTypes = {
 header: React.PropTypes.string.isRequired,
 languages: React.PropTypes.array.isRequired
}
ReactDOM.render(
 <LanguageSection
header="Languages"
 languages={languages} />,
 document.getElementById('app')
)


Conclusion

In this page (written and validated by ) you learned about React Variations of Stateless Functional Components . What's Next? If you are interested in completing React tutorial, your next topic will be learning about: React setState pitfalls.



Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue: mockstacks@gmail.com.


Share On:


Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using Mockstacks.com, you agree to have read and accepted our terms of use, cookies and privacy policy.