Box - Frontend Software Engineer - Technical Interview

Description:

Questions Asked:

• Implement an EventEmitter class:
  • Initially used an array for events and callbacks, but optimized it using an object with event names as keys and arrays of callbacks as values.
  • Required to support multiple arguments for callbacks.
• Verbal Questions:
  • Walk through what happens when a website is looked up (DNS lookup, server communication, etc.).
  • How assets are served.
  • The difference between HTTP and HTTPS and how it affects server communication.

Tags: Box, Frontend Engineer, Technical Interview, EventEmitter, System Design