Build an open source portfolio. Being able to show employers what I was capable of was a massive benefit both then and now. You can say you know all of these things, but when you’re looking at hundreds of applications one of the first things they do to reduce the pile is filter out people who don’t have some kind of online presence like Github. This allows them to see that you’re actively engaged with the field and if they want to interview you, to look at your code quality and experience.

A personal website that highlights your best work is also a good idea, as it helps to even further distill down the things you’re ultimately going to end up talking about in an interview. It doesn’t need to be anything fancy, just something that shows your competent. I wouldn’t expect the person interviewing you to actually hit view source and criticize your choice in frontend framework.