Syntax error Explain common code blocks in JavaScript switch statement?

Explain common code blocks in JavaScript switch statement?



Following is the code to implement common code blocks in JavaScript switch statement −

Example

 Live Demo

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
   body {
      font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
   }
   .result {
      font-size: 20px;
      font-weight: 500;
   }
</style>
</head>
<body>
<h1>JavaScript Switch statement</h1>
Enter day 1-7<input type="text" class="day" /><button class="Btn">
CHECK
</button>
<div style="color: green;" class="result"></div>
<h3>
Click on the above button to check which day it is
</h3>
<script>
   let dayVal = document.querySelector(".day");
   let resEle = document.querySelector(".result");
   document.querySelector(".Btn").addEventListener("click", () => {
      switch (parseInt(dayVal.value)) {
      case 1:
         resEle.innerHTML = "It's monday";
         break;
      case 2:
         resEle.innerHTML = "It's tuesday";
         break;
      case 3:
         resEle.innerHTML = "It's wednesday";
         break;
      case 4:
         resEle.innerHTML = "It's thursday";
         break;
      case 5:
         resEle.innerHTML = "It's friday";
         break;
      case 6:
         resEle.innerHTML = "It's saturday";
         break;
      case 7:
         resEle.innerHTML = "It's sunday";
         break;
      default:
         resEle.innerHTML = "Enter a value between 1 - 7";
         break;
   }
});
</script>
</body>
</html>

Output

The above code will produce the following output −

On entering a number between 1-7 and clicking on CHECK −

Updated on: 2020-07-15T13:56:19+05:30

255 Views

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