Declaring multiple variables in JavaScript

In JavaScript, it is possible to declare multiple variables like this:

var variable1 = "Hello, World!";
var variable2 = "Testing...";
var variable3 = 42;

…or like this:

var variable1 = "Hello, World!",
    variable2 = "Testing...",
    variable3 = 42;

Is one method better/faster than the other?