Documenting the store process, before the interview, I only prepared for algorithm coding questions, expecting a medium-level one:
Beginning:
The interviewer has 12 years of experience. After introducing themselves, they asked about the most challenging project I had worked on in the past. (5 minutes)
Getting to the main topic:
Design a frontend system that can display the status of one million online players. (45 minutes)
Implementation:
Implemented the view model in Google Docs.
The reason for failing was apparent. He asked about system design that I hadn’t prepared for. I listed out a few possible implementation methods and approaches on the spot, like sliding windows and infinite scrolling, but didn’t immediately recall the DOM API’s scrollTop and scrollHeight.