# <a href="/">Documents</a> › [Wallet Operations](../wallet_ops/wallet_ops.md) › **Error Handling Patterns**

# Error handling patterns

```ts
try {
  const res = await wallet.ops.send(5, proofs).offlineExactOnly().run();
  console.log('Sent:', res.send.length, 'Kept:', res.keep.length);
} catch (e) {
  // e is a proper Error (WalletOps normalizes unknowns internally)
  if ((e as Error).message.includes('Timeout')) {
    // …
  }
  throw e;
}
```