在单个语句中声明多个变量

Question

Saw something akin to the following in a js snippet:

var aaa = "eeee" + "rrrrr", bbb = "qqqqq" + "tttttt";

I'm confused, what is the advantage of doing that vs just:

var aaa = "eeee" + "rrrrr";
var bbb = "qqqqq" + "tttttt";

Answer 1

The comma, in this situation, allows you to declare multiple variables without having to re-use the var keyword over and over again:

var variable1 = 'foo',
    variable2 = 'bar';