Good one with the prototype. but if the object will be created with the class, the prototype is created automatically.

from javascript.info

"
But if there is a return statement, then the rule is simple:

If return is called with an object, then the object is returned instead of this.
If return is called with a primitive, it’s ignored.
In other words, return with an object returns that object, in all other cases this is returned.
"

Not sure, but I think beceause as soon as you call the NameMe function you will get the object back that is returned inside NameMe. So it will only get you the name. But if you return nothing you will get "this", so the NameMe object itself.

But it makes it easier to read.

Please use spoiler flag next time, otherwise your post is visible in the homepage.

It's in the description:

Taking into account that an average crew member on board adds 1.5 units to the draft, a ship that has a draft of more than 20 without crew is considered worthy to loot. Any ship weighing that much must have a lot of booty!

why we need to compare with 20?

Parentheses are superfluous for multiplication.

Usually it would not be the best practice because of variable leakage, but this kata is made for this xD.

can anyone explain how this works.

whoops got the !!! parameters the wrong way round, and it looks like a glorified listToMaybe

Fun & informative, good job. Onto the next one.