Frontend System Design
/Advanced
Service Workers
Definition
A Service Worker is a type of web worker. It is a JavaScript file that runs separately from the main browser thread, intercepting network requests, caching or retrieving resources, and delivering push messages.
Explain Like I'm New
A middleman between your website and the internet. If the internet dies, the middleman instantly hands the website a saved copy of the data.
Interview Questions
basic
- What is the core concept of Service Workers?
intermediate
- How does Service Workers impact the overall user experience?
advanced
- How do you scale Service Workers across a large enterprise application?
trick
- Can Service Workers be fully automated?