Tip: Consider using a positive test for cleaner code:
return words == null ? null : String.join(" ", words);
This approach is more intuitive and aligns with best practices.

This solution works. But I think shouldn't be considered as best practices or clever solution since can be optimized

It was not eazy, but very interesting!

JavaScript - can anyone please explain the final test? The instructions say that an empty array should be returned if N is NaN or < 1.
What value is N on the last test? I have tried logging it out and I am only getting 0 or 2 which makes no sense.

emmm... i feel like a fool.

Look at begining of your function. Empty array is {}

{{}} - array containing 1 empty array.

;)

Thank you so much for this comment! I was utterly confused when:

• The test header said "Should return -1"
• The actual output suggested the expected result was []
• The input seemed to be 2 based on console logging (which was already tested further up and handled correctly)

I would've never been able to guess a non-integer was the problem based on the information made available to me by the test. Bad form.

setup should specify whether frog can jump out of either side of the array or not.

invalid input I got was:
-1
0
-101

I think the task condition is written incorrectly. "A frog cannot jump out of an array" how to understand how many jumps it should do to understand that it still cannot jump out of an array??!!! my stack was overloaded because the frog could jump back and forth endless for given condition [1,-1]

approved

approved

C translation 🐸 (author gone)

approved