Why can't remove be destructured from a job?

[asvinp]

I have this code where onComplete or onError I remove the job. If I destructure remove from the job and call it, it would fail with a typeerror (see below), where as if I don't destructure it works as expected.

Appreciate if someone could help explain why this happens.

import { Job } from 'bullmq'

completed: async (job: Job) => {
      const { id, name, data, returnvalue } = job

        await job.remove() // This works
}

import { Job } from 'bullmq'

completed: async (job: Job) => {
      const { id, name, data, returnvalue, remove } = job

        await remove() // This fails
}

Error: TypeError: Cannot read properties of undefined (reading 'queue')

[manast]

This is how javascript works actually. As you are calling remove as a standalone function, but this function was part of a class before, you lost the correct "this" pointer. TLDR; do not destructure class methods it will never work.