When I look at job listings they list everything: html5/css3, Javascript, Jquery, React.js, Php, MySql, Bootstrap. I'm sorry but theres no way I can learn all that and be spectacular and fast at all of those unless someone's been at it for years and years (I haven't). But would it be best to ONLY do Javascript and be *The Best* Javascript guy? Or ONLY Sql and be "The best SQL guy?" Is it better go be a mile wide and 1 inch deep, or a mile deep and 1 inch wide?
I think you should go deep, but not with a certain technology. Think about it a bit differently and go deep in an area.
For example, as you put it, instead of being "the best SQL guy" work your way on being "The best Database guy". Instead of being "The best Javascript guy", go towards being "The best Frontend" guy.
Remember, technologies change fast, there will always be new platforms, new DB types (just think about Big Data and their adoption rate in the latest years). You will not be safe if you master a technology, but if you master a domain you will have deep knowledge on the subject and you will be quick(er) to adapt to any new technology coming your way.
Best of luck!
Answered 8 years ago
Access 20,000+ Startup Experts, 650+ masterclass videos, 1,000+ in-depth guides, and all the software tools you need to launch and grow quickly.
Already a member? Sign in