Eh. I'd have to slightly disagree. Having some experience in one of those frameworks is certainly useful but it's not really a requirement of being a front-end

Eh. I'd have to slightly disagree. Having some experience in one of those frameworks is certainly useful but it's not really a requirement of being a front-end dev. As long as you're intelligent and can use Google you'll pickup working knowledge of a language or framework quickly. This is why the best companies hire people based on who are they are, not what they know. There is also the semantic issue of how deep one must understand a language or framework. For example; I build custom WordPress themes and have a general knowledge of PHP but I'd never put on my resume that I know PHP. Not because I don't want to work with it, but because working knowledge doesn't constitute extensive knowledge.