This section explains about how to toggle between the switch states using toggle method.
import { Switch } from '@syncfusion/ej2-buttons';
//Set text in switch toggle states.
let switchObj: Switch = new Switch({ onLabel: 'ON', offLabel: 'OFF' });
switchObj.appendTo('#switch1');
switchObj.toggle();<!DOCTYPE html>
<html lang="en">
<head>
<title>EJ2 Switch</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="Typescript UI Controls" />
<meta name="author" content="Syncfusion" />
<link href="//cdn.syncfusion.com/ej2/21.1.35/ej2-base/styles/fabric.css" rel="stylesheet" />
<link href="//cdn.syncfusion.com/ej2/21.1.35/ej2-buttons/styles/bootstrap.css" rel="stylesheet" />
<link href="styles.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
</head>
<body>
<div id='loader'>LOADING....</div>
<div id='container'>
<input type="checkbox" id="switch1" />
</div>
</body>
</html>Switch triggers
changeevent on every state stage to perform custom operations.