Multple Criteria in a Single Case inside a Switch Statement

Question

Hi all I searched and found old answers like in 2008, im creating firefox addon for new browsers so i can use ecma 5+.

I was trying to do a a switch that had one block meet multiple criteria like if >=0 && <= 3 like below:

switch (blah) {
     case 0, 1, 2, 3: //<<<<<<<< this here please
          //do this;
          break;
     default:
          ///do this
}

This is just a basic example.

I would like multiple values to trigger the same case. How do I do this?

Answer 1

This might be what you are looking for. If it is please more clearly define your problem/question.

switch (x) {
   case 0:
   case 1:
   case 2:
   case 3:
   // do this
   break;
   default:
   // do this
}

See also Multiple Cases in Switch:

Answer 2

There is one hacky switch style that allows you to specify ranges:

switch (true) {
    case blah >= 0 && blah <= 3:
        //do this
        break
    default:
        //do that
}

It sometimes useful in cases like this.

Maybe it'll do what you want.