Positive and Negative Lookahead : Confused about solution

[alhazen1]

That question comes up frequently. There is an implied AND between those two lookaheads so you are looking for places where both lookaheads can be true.

I posted on this fairly recently so I’ll just link to that

Question about Regex

I’m no regex wiz but I’ll give this a shot to the best of my understanding. /(?=\w{5,})(?=\d)/ Your second lookahead is trying to match a place in your string where a pointer could be placed such that the pointer is immediately followed by 5 or more word characters \w and immediately followed by one digit character \d. Using variations of your password see where your regex will fail. astronaut false (obviously) 22astronaut true a22stronaut true as22tronaut true ast22ronaut true astr22on…