If the input string, with leading whitespace and possible +/- signs removed, begins with 0x or 0X (a zero, followed by lowercase or uppercase X), radix is assumed to be 16 and the rest of the string is parsed as a hexadecimal number.
If the input string begins with any other value, the radix is 10 (decimal).

you need to specify radix to stay on the safe side

In general - no.
For a 1-liner in isolated code runner - doesnt matter.

Wow this kata is too good to be just in 6 kyu :D

Just... LOL!

wow

wow

It will be great if there are tests for large numbers:)

Isn't ${name} already stringified?

I just read the article http://en.wikipedia.org/wiki/Egyptian_fraction

Can I ask how did you get inspiration of making this solution?
Been solving a number of katas here but every time I see others solution Cant believe Im using the same language as you do :o

so I passed the test, other's solution seems not different to my own, have no idea what is the purpose of this kata.

while I don't see your current solution, it's probably have to do with how you check if the node you're looking at has been visited already

wow