Pros and Cons of JavaScript

Advantages:

• Wide browser support i.e. Most Browsers speak a dialect.
• Easy access to document objectsand their manipulation
• No long download times w.r.t java or graphic animations
• No Plug-in support required
• Relatively Secure

Disadvantages:

• Not standard support for Javascript across browsers esp. DOM
• Web page useless if script does not work!!
• Javascript may be disabled by browser reading HTML file no control over this
• JavaScripts can run slowly

The version of JavaScript that was used as the basis of the ECMA Script standard was 1.1. Therefore everything that is written using JavaScript 1.1 should comply with the standard.