The conversation between human and AI assistant.
What is the difference between 'return false' and 'return' when attempting to exit out of a function?
What's the advantage of using 'return false' instead of just using 'return' in situations like this?
Using 'return false' allows your function to convey more specific information about why it failed. If the function simply returned without specifying what went wrong, it could make debugging more difficult later on. By returning 'false', it's clear that the input was the problem.