It's just short, nothing more.

good solving:)

Absolutley fantastic. I love you madly!

So clever.

Someone already commented on the fact there are no draws in basketball. Also, the expected output string is ugly. Rather than using "Points" for "marks in our ranking system," it would be less confusing to use "Marks" or something, since game scores are measured in points. And while the NBA website itself doesn't even track cumulative scoring, a convention in other sports is to use points for and points against. "Conceded" just sounds weird.

lol smart but should not be allowed

Well, it's a property of circle object. As JS is a dynamically typed language you have to either handle cases if there's no such property, or hope that everything will be okay ;)

My only doubt is: how the heck the function knows which data is 'radius'?

It maybe isn't sensible to have a bajillion issues noting the same thing ... .

OK, I got it now, the instructions were unclear.

Given a list phoneNumbers, your task is to find the duplicate telephone number in the list.

to find the duplicate telephone number, not unique phone numbers

testarr = [
"4873279",
"ITS-EASY",
"888-4567",
"3-10-10-10",
"888-GLOP",
"TUT-GLOP",
"967-11-11",
"310-GINO",
"F101010",
"888-1200",
"-4-8-7-3-2-7-9-",
"487-3279"]
result = [
"310-1010:2", ---> "3-10-10-10" and "310-GINO"
"487-3279:4", ---> "4873279", "ITS-EASY", "-4-8-7-3-2-7-9-" and "487-3279"
"888-4567:3"] ---> "888-4567", "888-GLOP" and "TUT-GLOP"

Where is the another 3 Duplicate Phone Numbers? I think the others are not Duplicate Phone Numbers. Do you think so?

Why it's SIX??
Ah~~, I'm going to crazy. ONE TWO SIX?? :D
May I ask you a question? Did you read the kata description?
No other meaning, just want to confirm. ;-)

JavaScript. Just look at the second sample test. It expects three unique phone numbers, but clearly, there are six. It looks like Python and C# have the same problem. And that is also the second actual test.