To give an example let's say you have a mailing list with 1000 people and you want to send out notification. You push "notify " button, but you don't want to wait for your app to go through 1000 people and send them email until it responds again. You also don't want to wait until midnight for crontab to start processing all requests.
Background jobs takes that 1000 deliveries job and puts it into the background queue, then a worker starts sending those emails right away. Meanwhile your app returns from your request instantly so you can continue doing what you were doing while the job is executed in the background.
Background jobs takes that 1000 deliveries job and puts it into the background queue, then a worker starts sending those emails right away. Meanwhile your app returns from your request instantly so you can continue doing what you were doing while the job is executed in the background.