//today is a variable storing a new JavaScript Date object. 
let today = new Date();
//day is a variable storing the numeric value for today's day out of the week
let day = today.getDay();

//Pay attention to the syntax of the switch statement. First, begin with the keyword switch() with the tested variable within the parenthesis:

//The switch statement's cases go inside of the curly brackets:
      switch(day) {
          // The first case on the next line contains the code to execute in the case that day is equal to 0. This is the equivalent of testing " if(day == 0) "
        case 0:
        // if this case is true, the day is Sunday. We print this to the console.
          console.log("It's Sunday");
          //It is important to include a break statement at the end of each case in a switch statement, so that the program stops checking each condition after the case has evaluated as true, and the switch statement is exited
         //Ensuring that the program does not continue to check the rest of the cases improves the program's efficiency 
          break;
         // the next line is the equivalent of testing " if(day == 1) "
        case 1:
          confirm("It's Monday");
          break;
        case 2:
         confirm("It's Tuesday");
          break;
        case 3:
          confirm("It's Wednesday");
          break;
        case 4:
          confirm("It's Thursday");
          break;
        case 5:
          cconfirm("It's Friday");
          break;
        case 6:
          confirm("It's Saturday");
          break;
       // the default case is simply declared by saying default: rather than case ___: 
        default: 
          confirm("I'm not sure what day of the week it is actually!");
      }