How do I Create a GUID Number Using JavaScript?

Raj Bhatt

1.2k

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <title>
        Guid Number
 </title>
</head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<body>
<button type="button" id="btnclick">Click Me!</button>
<script type="text/javascript">
 function uuidv4() {
 return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>
 (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
 );
}
console.log(uuidv4());
$('#btnclick').click(function(){
alert(uuidv4());
});
</script>
</body>
</html>

function generateGUID() {
return ‘xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx’.replace(/[xy]/g, function(c) {
var r = Math.random() * 16 | 0, v = c == ‘x’ ? r : (r & 0x3 | 0x8);
return v.toString(16);
});
}
```

This function generates a string in the format xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, where x and y are hexadecimal digits generated randomly. The function replaces each x or y with a randomly generated digit using the Math.random() method and the toString(16) method to convert the result to hexadecimal.

Manoj Kumar Duraisamy