The byteLength property of the SharedArrayBuffer returns an unsigned, 32-bit integer that specifies the size/length of a SharedArrayBuffer.
Syntax
Its Syntax is as follows
sharedArrayBuffer.byteLength
Example
Live Demo
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var sharedArrayBuffer = new SharedArrayBuffer(8);
var result = sharedArrayBuffer.byteLength;
document.write("length of the shared array buffer is: " + result);
</script>
</body>
</html>
Output
length of the shared array buffer is: 8