I had the same solution but without the '+' and of course got a string returned. Had to google this unary plus and learned something really cool and valuable today thanks to you. Thanks!

OP solved it, closing

What do you mean the wrong way? Isn't that how we're supposed to do it? I mean, there's no way you can access a variable of an inner function without receiving it directly from them (by return) or forcing them to leak the variable onto the global scope (like what you did)

Fixed..

I don't get it. I tried light mode and looks fine to me?
Can you give me more information about problem?

I checked again, you are refering to definition of kata. Will fix it..

Thnx

Message 1000 Encoded message: 1110000
Message 0001 Encoded message: 1101001

This is barely visible in light mode

or u can save the calculations

It will even throw an error if not an array. @_@

Because sometimes we want to convert from one type to another.

nice kata, with a touch of computer history and knowledge

damnnnnnn

this was fun to look at all the very different ways it was solved

Yes, you pass a sample in the form of two arrays which you have to create yourself to scales.getWeigh() and it returns a response. For example, if ball 1 is the heavy ball, the following will happen:

measurement = scales.getWeigh([0, 1], [2, 3])        ---> measurement === -1
measurement = scales.getWeigh([0, 2, 3], [4, 5, 6])  ---> measurement ===  0
measurement = scales.getWeigh([0, 2, 3], [1, 5, 6])  ---> measurement ===  1

Power and root are inverse operations, so your myPow function can with a very small modification be used to compute root instead.