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Knowing CSS is mastery to Front end Development
There are countless articles why developers should not focus on Frameworks too much and instead learn to understand the underlying languages. But I think rarely we can find good reasons except that Frameworks come and go.
To me, the main reason is different: You won’t be a master at frontend development if you don’t understand underlying mechanisms of a language. What companies expect when they ask for a web dashboard serving real time data for their customers is different: It should be a robust, well working application that is easy to maintain. And only then we can boost performance, write accessible code, load dynamic data in a proper and safe way and provide fallbacks in case something goes wrong.
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