no-prop-types

Rule category

Restriction.

What it does

Disallows using propTypes property in favor of TypeScript or another type-checking solution.

Why is this bad?

PropTypes were deprecated in April 2017 (v15.5.0).

The propType checks will be removed from the React package, and using them will be silently ignored. If you’re using propTypes, it is recommend to migrate to TypeScript or another type-checking solution.

Examples

Failing

import React from 'react';
 
class ExampleComponent extends React.Component {
  static propTypes = {
    name: React.PropTypes.string,
  };
 
  render() {
    return <div>{this.props.name}</div>;
  }
}

import React from 'react';
 
class ExampleComponent extends React.Component {
  render() {
    return <div>{this.props.name}</div>;
  }
}
 
ExampleComponent.propTypes = {
  name: propTypes.string,
};

import React from 'react';
 
function ExampleComponent(props) {
  return <div>{props.name}</div>;
}
 
ExampleComponent.propTypes = {
  name: propTypes.string,
};

Passing

import React from 'react';
 
interface ExampleComponentProps {
  name: string;
}
 
class ExampleComponent extends React.Component<ExampleComponentProps> {
  render() {
    return <div>{this.props.name}</div>;
  }
}

import React from 'react';
 
interface ExampleComponentProps {
  name: string;
}
 
function ExampleComponent({ name }: ExampleComponentProps) {
  return <div>{name}</div>;
}