Reddit Front End Engineer interview questions

There was a question about CORS and cross site scripting. Questions about how to optimize a site with lots of DOM nodes. The live coding was about aggregating data that was in a hash. For example, each key in the has would be the string of a date, and the property of each day was the traffic for that day, separated out by platform (ios, android, etc). You're asked to count the total traffic based on properties of those days. The final part was a sliding window problem where you have to find the seven days that had the highest traffic. You get about 30 minutes for the coding part. I would say the interviewer was cordial but charmless, so go in looking to knock the coding part out of the park. More failed front end interviewees should talk about their experiences imo, so that we all know which companies ask general knowledge and which ask leetcode, and which does both (as in this case).