[wccrawford]

I'm not the person you replied to, but I'd recommend learning them well enough to know their strengths, and then telling the interviewer that's what you did.

If you have any experience in other front end frameworks, that'll usually be enough to get you through that part of the interview anyhow.

[vonmoltke]

That's if you get the interview. This is my problem with most of this kind of advice. All the learning in the world won't help if they ignore your resume because your last job didn't us the same technologies they do.

[marrs]

You're presuming that's why they ignored your resume; it might not be. A good recruiter will help you improve your CV and will also ask the employer why you were rejected. It is also worth while including a covering letter that you can use to make some statements up front. Make it relevant to the job description and keep it to the point.

Finally, you may not be ready for the skill level you are targeting and you may need to work out what areas you need to improve in order to be able to progress.

[k__]

Also, after learning a few frameworks, it simply isn't hard.

I mean, if you get the right mind-set of wanting to understand "what is the intention of the framework devs" you can pretty much learn any framework.

Problems mostly come if you try to force your React/Ember/Backbone knowledge into another framework.

I got all my jobs without prior knowledge of the used frameworks.