Switch statement

In JavaScript, the switch statement is a control structure that allows to execution of different blocks of code based on the value of an expression.
It is commonly used when you have multiple possible conditions to test against a single value.

Syntax:

switch (expression) {
   case value1:
       break;
   case value2:
       break;
   // Add more cases as needed
   default:    
}

Example:

<!DOCTYPE html>
<html>
<body>
   <script>
      var grade = 'B';
      var result;
      switch (grade) {
         case 'A':
            result = "A Grade";
            break;
         case 'B':
            result = "B Grade";
            break;
         case 'C':
            result = "C Grade";
            break;
         default:
            result = "No Grade";
      }
      document.write(result);  
   </script>
</body>
</html>

Output:

B Grade