Is it worth learning React JS in 2021? React is absolutely worth learning . It is the most popular JavaScript framework with an 87.49% satisfaction rating from more than 17,000 users. Learning React opens the door to more jobs, better pay, and has an enormous community supporting it.
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No, you don’t . Focus on the main concepts I mention in the question above. In fact, many hooks and React features are rarely used even among the most expert developers. Just because it exists doesn’t mean you’re going to need it and you don’t need to spend equal time learning every single React concept.
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Virtual DOM for Faster Rendering React is fast. One of the hallmarks of a good web application is a superior page experience; a massive contributor to page speed is load time. React renders the DOM (Document Object Model) virtually first as a copy of the actual DOM.
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