number toString() method returns different values for number and variable [duplicate]

Answer 1

I believe the JavaScript parsers simply don't allow you to call methods directly on the literals.

However you can do this...

var n = (15).toString();
console.log(n);

... and it will work.

EDIT

Thanks @apsillers, for the explanation. I didn't know that. The first dot on numbers is treated as part of the number, hence the problem. 1.1.toString() works. Interesting.