CODE EXAMPLE FOR JAVASCRIPT

uuid generator pure javascript

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

console.log(uuid('PREFIX-xxxx-xxxx-xxxx-xxx-SUFIX'))
// adapted by iury.landin