{"id":43,"date":"2025-01-17T03:24:06","date_gmt":"2025-01-17T03:24:06","guid":{"rendered":"https:\/\/techkubo.com\/react\/?p=43"},"modified":"2025-05-19T08:00:21","modified_gmt":"2025-05-19T08:00:21","slug":"react-render-html","status":"publish","type":"post","link":"https:\/\/techkubo.com\/react\/react-render-html\/","title":{"rendered":"React Render HTML"},"content":{"rendered":"\n

React aims to render HTML on a web page efficiently. React achieves this by using a function called createRoot()<\/code> and its method render()<\/code>.<\/p>\n\n\n\n

<\/p>\n\n\n\n

The createRoot Function<\/h2>\n\n\n\n

The createRoot()<\/code> function accepts one argument, which is an HTML element. It specifies the HTML element where a React component will be displayed.<\/p>\n\n\n\n

<\/p>\n\n\n\n

The render Method<\/h2>\n\n\n\n

The render()<\/code> method is used to define the React component that should be rendered within the specified HTML element.<\/p>\n\n\n\n

So, where does it render?<\/p>\n\n\n\n

In your React project’s root directory, there is a folder named “public”. Within this folder, you’ll find an index.html<\/code> file. You’ll see a single <div><\/code> in the body of this file. This is where your React application will be rendered.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Displaying a paragraph inside an element with the id of “root” EXAMPLE<\/h2>\n\n\n\n
const rootElement = document.getElementById('root');\nconst root = ReactDOM.createRoot(rootElement);\nroot.render(<p>Hello World<\/p>);<\/pre><\/div>\n\n\n\n
The result is displayed in the <div id=\"root\"><\/code> element:<\/p>\n\n\n\n
<body>\n  <div id="root"><\/div>\n<\/body><\/pre><\/div>\n\n\n\n
\n
Note that the element id does not have to be “root”, but this is the standard convention.<\/p>\n<\/blockquote>\n\n\n\n
<\/p>\n\n\n\n
The HTML Code<\/h2>\n\n\n\n
HTML code in React often uses JSX, which allows you to write HTML tags inside JavaScript code.<\/p>\n\n\n\n
Create a variable containing HTML code and display it in the “root” node EXAMPLE<\/h3>\n\n\n\n
const myElement = (\n  <table>\n    <tr>\n      <th>Person<\/th>\n    <\/tr>\n    <tr>\n      <td>Mark<\/td>\n    <\/tr>\n    <tr>\n      <td>Laurenz<\/td>\n    <\/tr>\n    <tr>\n      <td>Drew<\/td>\n    <\/tr>\n  <\/table>\n);\n\nconst rootElement = document.getElementById('root');\nconst root = ReactDOM.createRoot(rootElement);\nroot.render(myElement);<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
The Root Node<\/h2>\n\n\n\n
The root node is the HTML element where you want to display the result. It acts as a container for the content managed by React. It doesn’t have to be a <div><\/code> element, and it doesn’t have to be named “root”.<\/p>\n\n\n\n
The root node can be called whatever you like:<\/p>\n\n\n\n
<body>\n  <header id="mochi"><\/header>\n<\/body><\/pre><\/div>\n\n\n\n
Display the result in the <header id=\"mochi\"><\/code> element:<\/p>\n\n\n\n
const rootElement = document.getElementById('mochi');\nconst root = ReactDOM.createRoot(rootElement);\nroot.render(<p>Hi there!<\/p>);<\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"
React aims to render HTML on a web page efficiently. 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