switch case syntax js code example

Example 1: js switch case

switch(expression) {
  case x:
    // code block
    break;
  case y:
    // code block
    break;
  default:
    // code block
}

Example 2: javascript switch statement multiple cases

//javascript multiple case switch statement
var color = "yellow";
var darkOrLight="";
switch(color) {
    case "yellow":case "pink":case "orange":
        darkOrLight = "Light";
        break;
    case "blue":case "purple":case "brown":
        darkOrLight = "Dark";
        break;
    default:
        darkOrLight = "Unknown";
}

//darkOrLight="Light"

Example 3: js switch

var myvalue='val1';//or other values; val2 val3 valx
switch(myvalue) {
  case 'val1':
      	console.log('var myvalue is '+ myvalue);
    	//other code ...
    break;
  case 'val2':
    	console.log('var myvalue is '+ myvalue);
    	//other code ...
    break;
  default:
    	// when all the other values not covered with cases above
    	// other code ...
}

Example 4: switch js

switch (expr) {
  case 'Oranges':
    console.log('Oranges are $0.59 a pound.');
    break;
  case 'Apples':
    console.log('Apples are $0.32 a pound.');
    break;
  case 'Bananas':
    console.log('Bananas are $0.48 a pound.');
    break;
  case 'Cherries':
    console.log('Cherries are $3.00 a pound.');
    break;
  case 'Mangoes':
  case 'Papayas':
    console.log('Mangoes and papayas are $2.79 a pound.');
    break;
  default:
    console.log('Sorry, we are out of ' + expr + '.');
}

console.log("Is there anything else you'd like?");

Example 5: switch case in js

<html>
   <body>      
      <script type = "text/javascript">
         <!--
            var grade = 'A';
            document.write("Entering switch block<br />");
            switch (grade) {
               case 'A': document.write("Good job<br />");
               case 'B': document.write("Pretty good<br />");
               case 'C': document.write("Passed<br />");
               case 'D': document.write("Not so good<br />");
               case 'F': document.write("Failed<br />");
               default: document.write("Unknown grade<br />")
            }
            document.write("Exiting switch block");
         //-->
      </script>      
      <p>Set the variable to different value and then try...</p>
   </body>
</html>

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