Returning Boolean Values from Functions, freeCodeCamp Basic Javascript

In this challenge we learn about a common anti-pattern used by beginners a lot to check if a comparison is true or false. Since a comparison in javascript will automatically return either true or false, we need not create an if else statement to check it.

[carlynesaintroc]

This simple explanation is the cleanest I've seen so far on YouTube...it makes complete sense. Other explanations seem to be convoluted and if you're a beginner you may just be confused. I'm glad I searched for multiple Boolean explanations and found this one. Also, this is the first time I've encountered the term 'anti-pattern'. I suppose it means bad coding practices. Unfortunately, the anti-pattern described here is what' I've come across on several channels on YouTube. Thank you sir, for enlightening me.

[artofwrick]

Why is my boolean function returning integer. When I call it in println statement.

[bysteveroe]

I don't understand why it speaks of === but then asks us to do <?