Function notify

packages/angular-db/tests/inject-live-query.test.ts:87–89

(changes: Array<any> = [])

  const id = `mock-col-` + Math.random().toString(36).slice(2)

  const notify = (changes: Array<any> = []) => {
    for (const cb of subs) cb(changes)
  }

  const notifyReady = () => {
    for (const cb of readySubs) cb()