3.1 What is React?
Nested Elements
Work in pairs for this practice exercise. 10 mins
# Background
When creating a React Element, the children can be any plain text string or another React Element (generated by another React.createElement() call), which can in turn have children elements of their own.
# Requirements
Using what you have learned about React.createElement(), write the JavaScript to create this nested HTML markup and mount it to the rootElement.
<div class="container">
<h1>Hello React</h1>
<main>
<p>I am <span style="color: green;">one of</span> the grand-children</p>
</main>
</div>
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TIP
You may want to refresh your memory on manipulating a DOM element's style property with JavaScript. See Styles and classes | JavaScript.info (opens new window)
Starter Code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Hello React</title>
<style>
.container {
font-size: 2rem;
margin: 0 auto;
width: 90vw;
}
</style>
</head>
<body>
<div id="root"></div>
<script
src="https://unpkg.com/react@17.0.2/umd/react.development.js"
crossorigin
></script>
<script
src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.development.js"
crossorigin
></script>
<script>
const rootElement = document.getElementById('root');
// Your code goes here ...
ReactDOM.render(element, rootElement);
</script>
</body>
</html>
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Solution Code
The solution code will be posted after class. ¯\(ツ)/¯