It is designed to be as beginner-friendly as possible and uses simple variables and functions.
When it comes to ease of learning, Python is the clear winner..
If you are already familiar with HTML & CSS then I would say 7 days is possible for a very basic understanding of JS. For a JS backend, if you are unfamiliar with programming concepts or databases, then 7 days is also unlikely to be enough. I make some bits of the web.
Basically, yes, if you know JS and whatever framework the company you’re applying to uses, you can get a job, but if it’s your first job they might expect to give you a decent amount of hands-on training for the first 3-6 months or so.
Python: probably the most beginner-friendly language I know. Python is rapidly increasing in popularity, with easy syntax and its support for major fields in development. Such as using Django for the backend, TensorFlow for Machine learning and AI or NumPy for mathematics.