Proving that you're a JavaScript Expert would probably involve a test from prospective employers. These three tests are common ones that they use for recruiting

Practical tasks like phrase reverse, event loops and using keywords are likely to be used to test you if you are applying to a job that uses Javascript.

Let's create a function that will return true if string is a prime number and return false if a number is not a prime.

Comprehensive list of JavaScript interview questions from basic to advanced, to help you prepare for technical interviews and boost your coding skills.