Syntax of switch case statement

switch( value )
       {
        case 1:
                execute code block 1;
                break;
       case 2:
                execute code block 2;
                break;
       default:                
                execute when any case does not match.
                break;
       }

Following example demonstrate use of switch– case statement

function dayOfWeak() {
            document.write("This example demonstrate use of switch case demo.  <br />");
            var val = 5;
            switch (val) {
                case 1:
                    document.write("Sunday.");
                    break;
                case 2:
                    document.write("Monday");
                    break;
                case 3:
                    document.write("Teusday");
                    break;
                case 4:
                    document.write("Wednesday");
                    break;
                case 5:
                    document.write("Thursday");
                    break;
                case 6:
                    document.write("Friday");
                    break;
                case 7:
                    document.write("Saterday");
                    break;
                default:
                    document.write("Invalid date you have selected.");
                    break;
            }
}

Output of the following code snippet is as follows