ReactJS - cannot read property 'props' of undefined

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I am practicing React native. When I compile the following program, I am getting Cannot read property 'props' of undefined error for Details.js. Kindly let me know as to what went wrong here.

Layout.js

import React, {Component} from 'react';
import Header from './Header';
import Details from './Details';

export default class Layout extends React.Component {
constructor(props){
  super(props);
    this.state = {
                     heading: "Welcome no-name guy!",
                     header: "I am your header",
                     footer: "I am your footer"
                 };
               }

render() {
   return (
           <div>
            <Header headerprop={this.state.header} />
            <Details detailprop={this.state.heading} />
          </div>
          );
         }
}

Details.js

import React from 'react';

const Details = (detailprop) => {
 return (
  <div className="heading-style">{this.props.detailprop}</div>
 );
 };
Details.bind(this);
export default Details;

Header.js

import React, {Component} from 'react';

export default class Header extends React.Component {
 render(){
           return(
                   <div>{this.props.headerprop}</div>
                 );
          }
 }

In functional components, the props are passed as the first parameter. So, you only need to do this:

const Details = (props) => {
    return (
        <div className="heading-style">{props.detailprop}</div>
    );
};

If you know the prop that you want to handle you can destructure that prop:

const Details = ({ detailProp }) => {
    return (
        <div className="heading-style">{detailprop}</div>
    );
};

TypeError: Cannot read property state of undefined, TypeError: Cannot read property 'state' of undefined with create-react-class # 12096. Closed. dallashuggins opened this issue on Jan 25, 2018 � 10 comments. TypeError: Cannot read property 'setState' of undefined ReactJS The solution. The issue happens because the method is not properly bind with this. As we all know that when we create a function it has it’s own special object this. As the arrow function does not have any special object this. This problem can be solved with the arrow function

Your component argument should be props:

const Details = (props) => {
 return (
  <div className="heading-style">{props.detailprop}</div>
 );
 };

It could be detailprop as you have (or anything for that matter) but you would then need to access the prop by the confusing call:

detailprop.detailprop

props is the idiomatic approach for React.

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Details.js is a stateless functional react component. https://facebook.github.io/react/docs/components-and-props.html

It receives props as its argument. You don't need this here.

import React from 'react';

const Details = (props) => {
 return (
  <div className="heading-style">{props.detailprop}</div>
 );
 };
Details.bind(this); // you don't need this
export default Details;

Also, div elements will not work for react-native . Please refer react native docs https://facebook.github.io/react-native/

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To learn more about the reasoning behind this convention, please read JSX In Depth. Composing Components . Components can refer to other components in their output. This lets us use the same component abstraction for any level of detail. A button, a form, a dialog, a screen: in React apps, all those are commonly expressed as components.