How to require Stateless Functional Components (Unknown module _createWrapper?)

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By : Maria Ines Fernandez

Date : November 27 2020, 11:01 PM

fixed the issue. Will look into that further Require is a commonJs import syntax and export default is ES6 export syntax.
so stick to one thing commonjs or ES6 Modules.

code :

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If-else in React Stateless functional components

By : naresh

Date : March 29 2020, 07:55 AM

around this issue I finally figured out the problem. I have to make 2 changes in my new code:
1) Use ternary operator for if-else

code :

import React from "react";
import currentUser from "shared/components/CurrentUser";
import Home from "../Home";
import Landing from "../Landing";

const DefaultRouteHandler = ({currentUser}) => (
    !currentUser ? <Landing /> : <Home />
);

export default currentUser(DefaultRouteHandler);

Helpers in stateless functional components

By : Luis Moncaleano

Date : March 29 2020, 07:55 AM

should help you out If you intend to reuse the helper function, put it outside the stateless component function, either in same file or another, and export it:

code :

export const myHelper = (value) => {
    // Insert logic
};

Is there a way to add children components to functional stateless components that are called as functions?

By : Hana Fetene

Date : March 29 2020, 07:55 AM

Does that help I want to call it as a function, yes you can. But then you will have to restructure your components and it will come at come cost. You cannot use them interchangeably without some compromises.
Following is a sample:

code :

const Parent = function(props){
  return (
    <div>
      <h3> This is Parent</h3>
      {
        Array.isArray(props.children) ? 
          props.children.map(x => typeof(x) === 'function' ? x() : x) : 
          null
      }
     </div>
  )
}

const Child = function(props){
  return (
    <p>This is Child! My name is {props.name}</p>
  )
}

let JSX = Parent({
  children: [
    Child.bind(null, {name: 'foo'}),
    Child.bind(null, {name: 'Bar'})
  ]
});
ReactDOM.render(JSX, document.getElementById('content'));

let JSX2 = (
  <Parent>
    <Child name='Jon'/>
  </Parent>
)

ReactDOM.render(JSX2, document.getElementById('content2'));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

<div id='content'></div>
<hr/>
<div id='content2'></div>

Why use stateless functional Components instead of class-based Components?

By : user2734766

Date : March 29 2020, 07:55 AM

this will help Functional state-less components (what wrongly you refer as UI Components, all components are UI components both statefull and stateless) are simply a short-hand method to create components that simply render something based on props passed and do not need to keep internal state.
Of course one can always use class-based components which extend React.Component. But why not have a short-hand to save time and space and simplify things if we can. There is nothing forcing you to create functional components, you can always use class-based components, only if you need to simplify and save time and space.

Functional Stateless Components and Keys

By : user2797354

Date : March 29 2020, 07:55 AM

wish helps you How do you Map a key in a functional component, precisely the 'key' keyword, not just a general index? , Try something like that

code :


    const ComponentOne = ({records}) => (
      <React.Fragment>
       {records.map( (record, index) => <ComponentTwo data={record} key={index}/>)}
      </React.Fragment>
    );