Javascript syntax check in eclipse

Question

I am developing a RIA application w/ javascript in Eclipse. How can enable Javascript syntax checks in eclipse?

Answer 1

Both the Web Tools Platform (WTP) and Aptana offer a quite good Javascript editor with syntax checking. I use the latter myself.

Answer 2

Have you looked at this question, JSEclipse or JavaScript Editor PlugIn for Eclipse?
If you are developing using ExtJS you can get even intellisense along with syntax check using spket.