<html>
<head>
<meta charset="UTF-8" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.development.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.development.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
</head>
<body>
<div id="app"></div>
<script type="text/babel">
const { useState } = React;
function App() {
const [inputValue, setInputValue] = useState('');
const [isValid, setIsValid] = useState('');
const handleInputChange = (event) => {
const value = event.target.value;
setInputValue(value);
if (value.length >= 10 && value.length <= 15) {
setIsValid('');
} else {
setIsValid('Input length must be either longer than 5 or shorter than 10');
}
};
return (
<div className='container'>
<h3>React Js Input field length validation</h3>
<input type="text" value={inputValue} onChange={handleInputChange} />
<small style={{ color: 'red' }}>{isValid}</small>
</div>
);
}
ReactDOM.render(<App />, document.getElementById("app"));
</script>
<style>
* {
box-sizing: border-box;
}
.container {
margin: 0 auto;
width: 600px;
text-align: center;
box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24);
padding: 20px;
}
h2 {
font-size: 24px;
margin-bottom: 20px;
}
input[type="text"] {
width: 100%;
padding: 10px;
font-size: 16px;
margin-bottom: 10px;
border: 1px solid #ccc;
border-radius: 5px;
}
</style>
</body>
</html>