How to define custom JavaScript exceptions?

Javascript Web Development Front End Technology

To learn how to define and implement custom JavaScript exceptions, you can try to run the following code −

Example

<html>
   <head>
      <script>
         <!--
            function myFunc() {
               var a = 30;
               var b = 0;

               try{
                  if ( b == 0 ){
                     throw( "Divide by zero error." );
                  } else {
                     var c = a / b;
                  }
               }
               catch ( e ) {
                  alert("Error: " + e );
               }
            }
         //-->
      </script>
   </head>
   <body>
      <p>Click the following to see the result:</p>

      <form>
         <input type = "button" value = "Click Me" onclick = "myFunc();" />
      </form>
   </body>
</html>

V Jyothi

Updated on: 23-Jun-2020

98 Views

Kickstart Your Career

Get certified by completing the course

Get Started