## PatchOperation.op property [​](/content/docs/sdk/core.patchoperation.op#patchoperationop-property/index.html)

**Signature:**

```typescript
readonly op: 'add' | 'remove' | 'replace' | 'copy' | 'move' | 'test';
```  
- [PatchOperation.op property](/content/docs/sdk/core.patchoperation.op#patchoperationop-property/index.html)