# BaseJobQueue.handler property · @imqueue/job

Source: https://imqueue.org/api/job/latest/job.basejobqueue.handler/
Published: 2026-07-31
Author: @imqueue maintainers (https://github.com/imqueue)
Package: @imqueue/job 3.0.3 — generated reference, not hand-written

The handler registered by `onPop`, if any.

**Signature:**

```typescript
protected handler?: JobQueuePopHandler<U>;
```

## Remarks

Doubles as the readiness flag on [JobQueue](https://imqueue.org/api/job/latest/job.jobqueue/), whose `start` and `push` both refuse to run while it is unset.