Adding Error Checking Via Error Handler

If you see the source for this page you will see how to add error detection by using the code defined in a file called ErrorHandler.js. To add error detection to any program of yours:

• Add the following line in the head section of your html document:
  
  <script type="text/javascript" src="ErrorHandler.js"></script>
  
  
• Download the file named ErrorHandler.js by right-clicking and selecting "Save Link As".
• Place the ErrorHandler.js file in the same folder where your program is located.

If you download this page and the ErrorHandler.js file you can experiment with possible errors you can get (just introduce some errors in the JavaScript portion of the page). The JavaScript portion just prints "Test Value used is: 100".