React eslint error missing in props validation

React is a popular JavaScript library for building user interfaces. When working with React, you may encounter an eslint error stating “missing in props validation.” This error occurs when you have defined a component’s prop types but have not specified the required prop types for your component.

To fix this error, you need to ensure that all the required prop types are defined in your component’s prop types declaration. There are two common ways to do this:

1. Using PropTypes Library

The PropTypes library provides a way to define the expected types for your component’s props. To resolve the “missing in props validation” error, you need to import the PropTypes library and define the prop types for your component.

Here’s an example:

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

const MyComponent = ({ name, age }) => {
  return (
    

      Name: {name}
      Age: {age}
    
  );
};

MyComponent.propTypes = {
  name: PropTypes.string.isRequired,
  age: PropTypes.number.isRequired,
};

export default MyComponent;

In the example above, we import the PropTypes library and use it to define the prop types for the name and age props. The isRequired modifier indicates that these props are required and must be provided when using the component.

2. Using TypeScript

If you are using TypeScript in your React project, you can leverage its static type checking to ensure the correct prop types are provided.

Here’s an example:

import React from 'react';

interface MyComponentProps {
  name: string;
  age: number;
}

const MyComponent: React.FC = ({ name, age }) => {
  return (
    

      Name: {name}
      Age: {age}
    
  );
};

export default MyComponent;

In the example above, we define an interface MyComponentProps that specifies the expected types for the name and age props. We then use this interface to type-check the props received by the component.

By using either the PropTypes library or TypeScript, you can ensure that all the required prop types are defined for your React components. This will help prevent the “missing in props validation” eslint error and improve the overall reliability of your code.

Remember to always validate your props to ensure that the correct data types are passed to your components. This will help catch potential bugs and make your code more maintainable.