179 - Contains Duplicate - typescript

index.ts
```ts index.ts
export function hasDuplicate(numbers: number[]): boolean {
  const uniqueNumbers: Set<number> = new Set();

  for (const num of numbers) {
    if (uniqueNumbers.has(num)) {
      return true; // Duplicate found
    }

    uniqueNumbers.add(num);
  }

  return false; // No duplicates found
}
```

