the || to me is for aesthetically pleasing so I certainly agree this ranks higher than &&

Don't know why this is so far below the && solution.
But I am happy I finally got one of the top answers on my Kata.

Very concise with the ternary. Good work!

There are people who can't do math, so...

Why isn't this solution best practice? It seems so simple and straight forward.

Thank you @St3f4n i understand it now i'm a beginner in JS thats why it seems weird for me.

It's shorthand for Number(), so it's just a simple converting to a number.

can somebody explain to me why in the code there is the plus sign in the beggining of the code in my code i used parseFloat but this plus in the beggining i didnt understand .

666

I see, then these websites are wrong, when they state that the let keyword is part of the ES6 and newer:

https://medium.freecodecamp.com/5-javascript-bad-parts-that-are-fixed-in-es6-c7c45d44fd81#.xuzvyk491
https://strongloop.com/strongblog/es6-variable-declarations/
https://davidwalsh.name/for-and-against-let

Sorry, just a little confused.

no, this is not ES6 dependent

This will only work for ES6, right?

Additionally, I didn't even think about putting a conditional test as the property value in an object! Very succinct and novel.

This is great! I used your code if you don't mind in my blog and tried to explain how it works.

"Hundreds of rows" and "extra columns"? That's adorable.

My friend, my current job right now is writing code to generate exports on top of a data warehouse. Tens of thousands of rows are not uncommon. One export has over 300 columns. We weren't satisfied with any of the available data structures (there's extensive post-processing of the data), so we wrote our own. What we did not say is, "Well, screw it, let's just use Records. It's dirt slow and frustrating to work with, but at least we don't have millions of rows. Until next year, anyway."