react_tutorial/01_react_basic/codes/03_react_create_element.html at main · linlinw5/react_tutorial · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="https://unpkg.com/react@18/umd/react.development.js"></script>
    <script src="https://unpkg.com/react-dom@18/umd/react-dom.development.js"></script>
    <!-- react-native -->
  </head>
  <body>
    <div id="root"></div>

    <script>
      const root = ReactDOM.createRoot(document.getElementById("root")); // ReactDOMRoot

      const ul = React.createElement(
        "ul",
        null,
        React.createElement("li", null, "item 1"), // ReactElement
        React.createElement("li", { className: "active" }, "item 2"), // ReactElement
        React.createElement("li", { style: { color: "red", backgroundColor: "green" } }, "item 3"), // ReactElement
        React.createElement(
          "li",
          null,
          React.createElement("a", { href: "http://abc.com" }, "item 4"), // ReactElement
        ),
      );

      console.log(ul);

      root.render(ul);
    </script>
  </body>
</html>