<html>
<head>
<meta charset="UTF-8" />
<script src="https://unpkg.com/react@17.0.2/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.development.js"></script>
<script src="https://unpkg.com/@babel/standalone@7.14.7/babel.min.js"></script>
</head>
<body>
<div id="app"></div>
<script type="text/babel">
const { useState } = React;
function App() {
const [demoArray, setDemoArray] = useState([]);
return (
<div class='component'>
<h3>React Js Check Element Exist in Array</h3>
{demoArray.length === 0 ? (
<p>Array is empty</p>
) : (
demoArray.map((item) => <p key={item}>{item}</p>)
)}
</div>
);
}
ReactDOM.render(<App />, document.getElementById("app"));
</script>
<style>
.component {
padding: 20px;
border: 1px solid #ccc;
}
h3 {
font-size: 24px;
margin-bottom: 10px;
}
p {
font-size: 16px;
margin-bottom: 5px;
}
</style>
</body>
</html>