Documentation / @zerotal/flow / index / transient

Variable: transient

const transient: (value, context) => void

Defined in: flow/src/decorators.ts:386

Marks a field as transient — excluded from the snapshot entirely.

Parameters

value

unknown

context

ClassFieldDecoratorContext

Returns

void

Remarks

Unlike @computed (which is derived and re-runs each render), a transient field is ordinary server-side state that simply never crosses the wire and is not persisted between requests: it holds its default value at the start of each render and is invisible to the client. Use it for server-only scratch state (caches, handles, injected services) that must not be serialized. Applies only to a field; a getter/accessor is rejected at runtime.

Example

class Report extends Component {
  // Server-only handle — never serialized to the client.
  @transient private db!: DatabaseConnection;
}