The guide is in favor of declaring multiple variables with only 1 var statement. For example:

var items = getItems(),
    goSportsTeam = true,
    dragonball = 'z';

This article presents some good argument against doing it that way . I agree with almost everything in this article; except I don't believe single var statement is more readable.

Better, would be:

var items = getItems();
var goSportsTeam = true;
var dragonball = 'z';