- Run
npm installand thennpm run start. - Follow the instructions you receive.
- Observe that the new callback is being called multiple times with the same block number, like this:
watchBlockNumber second callback received 27095204
watchBlockNumber second callback received 27095204
watchBlockNumber second callback received 27095205
watchBlockNumber second callback received 27095205
watchBlockNumber second callback received 27095206
watchBlockNumber second callback received 27095206
when you would expect to see
watchBlockNumber second callback received 27095204
watchBlockNumber second callback received 27095205
watchBlockNumber second callback received 27095206