Use of Switch Case in JAVASCRIPT:

 How to check week day from  week number  ?

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Check week day</title>

</head>

<body>

    <script>

    var a = prompt("enter Week Number");

 switch(a){

    case '1':

        document.write("Monday");

        break;

         case '2':

        document.write("Tuesday");

        break;

        case '3':

        document.write("Wednesday");

        break;

        case '4':

        document.write("Thursday");

        break;

        case '5':

        document.write("Friday");

        break;

        case '6':

        document.write("Saturday");

        break;

        case '7':

        document.write("Sunday");

        break;

        default:

        document.write("please write correct week number");

   

 }

 </script>

</body>

</html>

<----output you will get after run this code---->