Try my app Expense Manager @ google play and amazon store.

Tuesday, June 26, 2012

Java Script Tutorial 18 : JavaScript Throw

JavaScript throw statement allows you to create an exception. If you use this statement together with the try .. catch statement, you can control program flow and generate error messages. The exception can be a string, integer, Boolean or an object. Syntax of throw is as:

throw exception

For example

<!DOCTYPE html>
<script type="text/javascript">
var x=prompt("Enter a number between 2 and 5:","");

             throw "Error 1";
       else if(x<2)
             throw "Error 2";
       if(err=="Error 1")
              document.write("The value is higher then 5.");
       if(err=="Error 2")
              document.write("The value is lower then 2.");

No comments:

Post a Comment

Follow by Email

Google+ Badge