Creating a React component

Creating a React component

react component example
react create component cli
functional component react
react tutorial
create-react app
react component template
react hooks
react-bootstrap

I'm trying to create one component (one HTML-circle) in React, but I get 'unknown error':

ReactDom.render(
  <main>
    <h1>Below is my component</h1>
      <Html_component />
  </main>, document.getElementById('root') );
  
  function Html_component(){
  return(
    <main>
      <div style="border-radius: 50%; background-color: black; width: 10px; height: 10px;"></div>
    </main>
  )
}
<div id="root"></div>

ReactDOM.render expects as first argument an instantiated component, you are just passing jsx.

function App() {
    return (
        <main>
            <h1>Below is my component</h1>
            <Html_component />
        </main>
    )
}

function Html_component() {
    return (
        <main>
            <div style="border-radius: 50%; background-color: black; width: 10px; height: 10px;"></div>
        </main>
    )
}

ReactDom.render(<App />, document.getElementById('root'));

Remeber, a functional component is a function which returns jsx

React Components, React Components. Create a Class Component. When creating a React component, the component's name must start with an upper case letter. Create a Function Component. Here is the same example as above, but created using a Function component instead. Component Constructor. Props. Components in Files. Create the hello world component. Using the completed code of our <Hello /> component above, lets make it actually appear on the screen. To do this, we’ll need to attach this React component to an existing DOM element on the page.


React: How to Create a Component, Ever wondered how to create a component in React? In this article, I'll go over basic components and how you can build them. Tagged with� Components are an essential part of any React application. In this post, we'll be learning how to create components to do whatever we want. Think of components as bite-size chunks of our application that we can reuse all over our site. Let's pretend we're making a social network and want to put a like, share, and comment button below each post.


spell mistake and style property change

try this

function Html_component() {
return (
    <main>
        <div style={{ 'border-radius': "50%", 'background-color': 'black', width: '10px', height: '10px' }}></div>
    </main>
)}   

ReactDOM.render(
<main>
    <h1>Below is my component</h1>
    <Html_component />
</main>, document.getElementById('root'));

How To Create Custom Components in React, First, create a new project. Open a terminal, then run the following command: npx create-react-app tutorial-03-component. Using create-react-library. Just like installation, usage of this package is very straightforward, all you need is a simple command. Once executed, it’ll ask a few questions and with that information, it’ll create the required template. $ create-react-libary.


This is better concept to use always class model with defined state params , props and maybe callback ...

Include interface's also...

interface propsInterface {
  title: string
};

interface stateInterface {
  visibility: boolean
};

class Below extends React.Component <propsInterface, stateInterface > {

 constructor(props) {
    super(props);
    this.state = { visible: true};
 }
  
 render() {
  if (this.state.visible === true) {
    return (
     <main>
      <div>{this.props.title}</div>
     </main>
   );
  } else {
    return (<div></div>);
  }
  }  
 };
  
  
 ReactDOM.render(
  <Below title="Below component." />,
   document.getElementById('root'));
<div id="root"></div>

<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>

Creating a Simple React Component, In this post we'll walk you through creating your first React component -- a play on the infamous "Hello World". At the time of writing, there is no official support in React to create Web Components. But using Web Components in React works well. So, if you want to create a Web Component from React, there are several community projects trying to provide a wrapper. At the time of the creation of Palaver, none of them worked well.


3 Ways to Create React Components, This method of creating a react component has depreciated starting from Version 16 and will only work for React versions 15 or earlier. If you still� Creating a React Calendar Component: Part 4 If at any point, I need to make modifications to a sub-component or its related style, it is easy to locate where the changes need to take place


Creating Your First Component ― Scotch.io, js file. Add the following above the call to ReactDOM.render . class App extends React.Component� Create React App is a comfortable environment for learning React, and is the best way to start building a new single-page application in React. It sets up your development environment so that you can use the latest JavaScript features, provides a nice developer experience, and optimizes your app for production.


React Tutorial: Components, Components are the heart and soul of React. // Create a component named MessageComponent var MessageComponent = React.createClass({ render�