How can i define more than one var in one step?

Question

Hello,

is there a good solution how can i define more than one var with the same value in one step an the beginning of my funcion?

function myFunction (){
   var a,b = 0;
   document.write(a) // undefined
   document.write(b) // 0
}

Is there a good way to write this like var a,b = 0; ?

Answer 1

var a = 0, b = 0;

Answer 2

An alternate way

var a = b = 0; 

Answer 3

Something like this, however I don't like it.

var var1 = "hello",
    var2 = "world",
    var3 = 666;

Better

var var1 = "hello";
var var2 = "world";
var var3 = 666;

Please take a look at http://javascript.crockford.com/code.html

Answer 4

var a = 0, b = a;

Answer 5

You can't do two things at once. You can't declare multiple local variables and assign a single value to all of them at the same time. You can do either of the following

var a = 1, 
    b = 1;

or

var a,b;
a = b = 1;

What you don't want to do is

var a = b = 1;

because you'll end up with b being a global, and that's no good.