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<!doctype html>
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 <html>
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   <head>
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     <meta charset="utf-8">
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     <title>Javascript Examples </title>
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   </head>
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   <body>
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     <script>
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      let day = parseInt(prompt("Enter day number"," 0 for sun day"));
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      switch (day) {
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       case 0:
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       alert ("Sunday");
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       break;
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       case 1:
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       alert ("Monday");
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       break;
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       case 2:
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       alert ("Tuesday");
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       break;
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       case 3:
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       alert ("Wednesday");
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       break;
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       case 4:
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       alert ("Thursday");