JavaScript is a simple and easy-to-learn programming language as compared to other languages such as C++, Ruby, and Python. It is a high-level, interpreted language that can easily be embedded with languages like HTML.
Read moreCan I learn JavaScript in 2 days?
Seriously, two days is about enough to get a feel for the basics . It’s nowhere near enough time to get to “professional” level (whatever that means exactly). The more experience you have with other languages, the easier it will be, though.
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