<!--{"section": "tjs", "type": "example", "group": "patterns", "order": 6, "parent": "tjs-patterns.md"}-->

# Async Functions

Typed async/await patterns

```tjs:inline
// Async functions work naturally

async function fetchUser(id: 'user-1'): { name: '', email: '' } {
  // Simulated API call
  await new Promise(resolve => setTimeout(resolve, 100))
  return {
    name: 'User ' + id,
    email: id + '@example.com'
  }
}

async function fetchUsers(ids: ['']): [{ name: '', email: '' }] {
  return Promise.all(ids.map(id => fetchUser(id)))
}

// Run it
console.log(await fetchUsers(['alice', 'bob', 'charlie']))
```