The switch statement in Javascript

In the following code it displays the switch command followed by a break. So you set your variable to the case you want to assign to it, and the price should appear in the pop up window. So what the switch command its doing it’s going threw every single different possible “case” that it could have and moves on from break to break.


var grade = "Premium";
switch ( grade ) {
case "Regular":
alert ("it's $3.15");
break;
case "Premium":
alert ("It's $3.35");
break;
case "Diesel":
alert ("It's $3.47");
break;
default:
alert ("That's not a valid grade");
}