What does it mean when there is a number parameter passed to toString?

Question

I\'m just wondering what it means to attach a number as a parameter to the toString() method

E.g. obj.toString(10);

I googled a

Answer 1

This only works on Number objects and is intended to give you a way of displaying a number with a certain radix:

var n = 256;
var d = n.toString(10); // decimal: "256"
var o = n.toString(8);  // octal:   "400"
var h = n.toString(16); // hex:     "100"
var b = n.toString(2);  // binary:  "100000000"
var w = n.toString(20); // base 20: "cg"

Note that the radix must be an integer between 2 and 36 or toString() will raise an error.