It’s very easy to call a function in a switch case in JavaScript. You need to Custom the function or inbuilt function name inside the case block for it.
switch (expression) {
case expression:
function();
break;
default:
}Call a function in switch case in JavaScript
Simple example code.
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
var text;
var fruits = "Apple"
switch(fruits) {
case "Banana":
hello("Banana is good!");
break;
case "Orange":
hello("I am not a love of orange.");
break;
case "Apple":
hello("Apple is good for Health.");
break;
default:
hello("Fruit...not found");
}
function hello(msg){
alert(msg);
}
</script>
</body>
</html>
Output:
Just wrap the operations in functions so they are reusable
switch (something) {
case 1:
operation1();
break;
case 2:
operation2();
break;
case 3:
operation3()
operation1(); //call operation 1
break;
default:
defaultOperation();
break;
}Do comment if you have any doubts or suggestions on this JS switch case topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version