rspec/rules/S4444/javascript/rule.adoc

If the type of a ``++props++`` property is not defined there is a great chance one will wrongly use the value returned by the property and generate a not expected behavior of the application.


== Noncompliant Code Example

----
class Rating extends React.Component {
  render() {
    return ( <div>{this.props.rating}</div> );
  }
}
----


== Compliant Solution

----
import PropTypes from 'prop-types';

class Rating extends React.Component {
  render() {
    return ( <div>{this.props.rating}</div> );
  }
}

Rating.propTypes = {
  rating: PropTypes.number.isRequired
};
----



ifdef::env-github,rspecator-view[]
'''
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include::comments-and-links.adoc[]
endif::env-github,rspecator-view[]