UUID - Universally Unique Identifiers

UUID - Universally Unique Identifiers

Trigger patterns: "UUID", "unique ID", "identifier", "v4", "v7", "uuidv4", "uuidv7"

Overview

UUID library for generating RFC9562-compliant unique identifiers in JavaScript/TypeScript applications.

Package: [email protected]
Standard: RFC9562 (formerly RFC4122)

Core Functions

1. v4() - Random UUID (Most Common)

Generates a version 4 UUID using cryptographically secure random values.

import { v4 as uuidv4 } from 'uuid';

// Generate random UUID
const taskId = uuidv4();
// '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d'

// Use in entity creation
interface Task {
  id: string;
  title: string;
  createdAt: Date;
}

function createTask(title: string): Task {
  return {
    id: uuidv4(),
    title,
    createdAt: new Date()
  };
}