It really depends on the place and the type of position. If you have a solid track of web development experience, people looking for a well-rounded engineer wil

It really depends on the place and the type of position. If you have a solid track of web development experience, people looking for a well-rounded engineer will not care if you know the latest JS framework. People just looking for someone to quickly stand up a site using that framework, however, may care more about it than your general skill set. I've looked for both and hired both at various times and places in my career. I think the hole that older developers fall into is that their particular skills are out of date, and they have not expanded their skill set. I've talked to C++ developers who can't speak to anything beyond writing C++03 code for the last decade. You're basically looking for a niche position with that resume.