This is great advice and would be even better, if our industry was not that hype driven. Tell someone, you are a JavaScript expert and you had great success in

This is great advice and would be even better, if our industry was not that hype driven. Tell someone, you are a JavaScript expert and you had great success in the past with jQuery and knockoutjs. People will reject you, you won't have a job and no money. And if you are one of these poor fools, who depend on work for income, than good luck not at least partially follow up on trends, them being silly or not.