what are some good js practice problems to work on?

JavaScript is a powerful language used to create dynamic and interactive web applications. As you become more familiar with the language, it's important to continue practicing your skills by tackling challenging problems. Studies have shown that problem-solving is one of the best ways to cement coding concepts in your mind, so here are some recommended JavaScript practice problems for aspiring developers:

1. Palindrome Checker – Palindromes are words or phrases that read the same backwards as forwards (e.g. "racecar"). Write a function that takes a string and determines if it's a palindrome or not.

2. Fibonacci Sequence – Create a function that takes a number as an argument, and returns the Fibonacci sequence up to that number. For example, if the argument is 8, it should return "1 1 2 3 5 8".

3. Multiplication Table – Write code that creates an HTML table displaying numbers from 1 to N multiplied by each other (e.g., displaying 15 would result in multiplication tables that range from 1 through 15).

4. Rock Paper Scissors – Create a program where two players can compete against each other in the well-known game "Rock Paper Scissors", with results being printed out for each round played between players A and B: "Player A chose rock and Player B chose scissors -- Player A wins!"

5. Prime Number Generator – Write a function or algorithm which will generate prime numbers between two different input numbers (e.g., generate all prime numbers between 10 and 20).

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