Switch on ranges of integers in JavaScript

javascript switch-statement
Jaanus picture Jaanus · Apr 11, 2011 · Viewed 140.3k times · Source

I want to do something like this

    switch (this.dealer) {
        case 1-4: 
            // Do something.
            break;
        case 5-8: 
            // Do something.
            break;
        case 9-11: 
            // Do something.
            break;
        default:
            break;
    }

What is the right syntax for this? Is it possible in JavaScript?

So this.dealer is an integer, and if it's between those values, do something.

Answer

Alejandro Martin picture Alejandro Martin · Apr 11, 2011

Here is another way I figured it out:

const x = this.dealer;
switch (true) {
    case (x < 5):
        alert("less than five");
        break;
    case (x < 9):
        alert("between 5 and 8");
        break;
    case (x < 12):
        alert("between 9 and 11");
        break;
    default:
        alert("none");
        break;
}

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