This is certainly true, specially when you work at a company that really doesn't invest enough research time in the choosing of a new framework as they should. You need to see the key features and a bit of hands-on trial fast to be able to showcase them even faster.
Of course it's not an ideal method of picking new technology, but sometimes you can't really argue about it and have to go along.
i have to agree with that. It's really hard to keep up with all the JS frameworks and having tutorials like these definitely helps with the anxiety to delve into it. I wish there would be one for backbone, as it seems more popular
When it comes to differentiating between frameworks, tutorials like this go a long way, and help the entire JS community. I look forward to other JS frameworks coming out with similar, and getting more opinionated about conventions.