Accessibility in EJ2 JavaScript Switch control

10 May 20235 minutes to read

The web accessibility makes web content and web applications more accessible for people with disabilities. It especially helps in dynamic content change and development of advanced user interface controls with AJAX, HTML, JavaScript, and related technologies.

Switch provides built-in compliance with WAI-ARIA specifications. WAI-ARIA support is achieved through the attributes like aria-checked and aria-disabled. It helps the people with disabilities by providing information about the widget for assistive technology in the screen readers, such as screen readers.

Properties Functionality
role Indicates the switch component.
aria-checked Indicates whether the input is checked, unchecked.
aria-disabled Indicates that the element is perceivable but disabled, so it is not editable or otherwise operable.

Keyboard interaction

Keyboard shortcuts Actions
Space When the switch has focus, pressing the Space key changes the state of the switch. 
ej.base.enableRipple(true);

//checked state.
var switchObj = new ej.buttons.Switch({ checked: true });
switchObj.appendTo('#switch1');

//unchecked state.
switchObj = new ej.buttons.Switch({ checked: false });
switchObj.appendTo('#switch2');
<!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="https://cdn.syncfusion.com/ej2/23.2.4/ej2-base/styles/fabric.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="styles.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <table class="size">
            <tbody><tr>
                <td class="lSize">Checked</td>
                <td>
                    <input type="checkbox" id="switch1">
                </td>
            </tr>
            <tr>
                <td class="lSize">Unchecked</td>
                <td>
                    <input type="checkbox" id="switch2">
                </td>
            </tr>
        </tbody></table>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#container {
    visibility: hidden;
    margin-left: 10px;
}

#loader {
  color: #008cff;
  height: 40px;
  width: 30%;
  position: absolute;
  top: 45%;
  left: 45%;
}

.size tr td {
  padding: 10px;
}

.size .lSize {
  font-family: "Roboto", "Segoe UI", "GeezaPro", "DejaVu Serif", "sans-serif";
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}