Could you please stop posting unsubstantive comments to Hacker News? You've done it repeatedly, and we ban that sort of account. I don't want to ban you, so if you'd review https://news.ycombinator.com/newsguidelines.html and take the spirit of this site more to heart, we'd appreciate it.
I think the real answer is that programmers dont impliment data structures anymore. Most programmers only need the stuff provided by their langauge and core libary.
But to answer your exact question. Hash Array Mapped Tries are the new hotness and date back to 2000.
