While it’s not really a prerequisite, it’s very helpful to understand the basics of Java or C before learning JavaScript–or as much as you can about programming in general. If you can spare the time, I’d recommend picking up a beginner’s book on C to gain a crash course in its command and syntax, since JavaScript uses some of the same conventions. If you ultimately want to become well-versed in JavaScript, it will be worth it to get a good grounding from the start. That said, if you need to supply JavaScript programs in a hurry you’ll find there are certainly many resources available to you to make that job easier. There are already a number of comprehensive JavaScript computer books in print, like Gordon McComb’s “JavaScript Sourcebook” from John Wiley & Sons; some include sample JavaScript applications and routines on enclosed CD-ROMs. JavaScript Index is one Web resource comprised on links to online tutorials, book publishers, mailing lists, and sites that make good use of JavaScri
Ugh the guy that put the first answer has it all wrong. javascript may be hard to some people but not hard to learn for other people. you do not need to learn c or java first, i suggest learning html then xhtml then css and then php or javascript.
javascript will be much easyer once you get the hang of those as for i am learning it now XD