The best skill you can develop as a front-end developer is how to think like a front-end developer. And front-end developers know where to find answers more than they know the actual answers.
Yes, exactly. We get a lot of practice at looking things up as developers. After a while, you may forget that it is a skill you developed over time and assume everyone else can do it.
I am reminded of this whenever my mother-in-law asks me to help her out with a tech issue, and she watches in amazement as I quickly google a phrase, scan the results, adjust the search term, and repeat until I find a link that helps me.