var ID = function () {
// Math.random should be unique because of its seeding algorithm.
// Convert it to base 36 (numbers + letters), and grab the first 9 characters
// after the decimal.
return '_' + Math.random().toString(36).substr(2, 9);
};Math.random().toString(36).slice(2);function uuid() {
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);
});
}
var userID=uuid();//something like: "ec0c22fa-f909-48da-92cb-db17ecdb91c5" /* unique id generator javascript */
const uuid = () => {
const head = Date.now().toString();
const tail = Math.random().toString().substr(2)
return head + tail
}
uuid();