Generate UUID

1function generateUUID(): string {
2return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
3const r = (Math.random() * 16) | 0;
4const v = c === "x" ? r : (r & 0x3) | 0x8;
5return v.toString(16);
6});
7}
8
9// Modern alternative using crypto API
10function generateSecureUUID(): string {
11return crypto.randomUUID();
12}
13
14// Usage
15console.log(generateUUID()); 
16// "f47ac10b-58cc-4372-a567-0e02b2c3d479"