Javascript error usually appears with a yellow triangle in pop up box and tells you to debug. A problem with JavaScript embedded in the web page usually causes this. JavaScript error may also appear in programs associated with them. Dreamweaver relies heavily on JavaScript making it vulnerable to JavaScript errors.

What Is JavaScript Error ?

Javascript is a “scripting language” which is different from the “programming language”. It is mostly used to write code for applications on web pages. JavaScript error alerts you that there are something wrong with the code of website you are visiting or there are some problems in your web browser. A JavaScript error actually is an error in the code of the web page being viewed.  It is not an error on the part of the PC doing the viewing.  More than anything, these errors are a meaningless annoyance; however, they can also leave erroneous information in a PC’s Windows registry, leading to computer freezes, file errors, and other issues later on.

How to Fix JavaScript Error ?

If you are experiencing errors from webpage you can check if Active script, Java applets, or ActiveX is blocked on your browser settings. Internet explorer or another program such as firewall or antivirus may also block these processes. Undoing the block may fix JavaScript error. To undo the block on internet explorer go to tools, internet options, security, and choose default level.

Check other computer if they are getting Javascript error when opening that website. If yes then the problem lays on the website itself, not your computer.

Features such as smooth scrolling may also be the cause. Go to internet options and choose advanced then find smooth scrolling in the list. Clear the check box to deactivate it.

Get the latest version of scripting engine from Microsoft. Note that Windows XP and Vista usually have them installed in the system.

To fix JavaScript error, it is highly recommend you use system repair tool to fix Windows registry errors. Most of the JavaScript errors are related to registry errors such as invalid registry, corrupted registry entries and malicious registry. A professional system repair software can not only help you fix JavaScript error but also DLL error, runtime error and other system errors to enhance your computer overall performance.