Javascript Template use?

I have read about, but never used a javascript template. What is an example of a practical situation to use them? I have read several tuts on net.tuts but havent understood what the right application they would be used for. In the tut it usually says -

Finally, remember that JavaScript templates is just one more tool in your box; and, sometimes, it simply isn’t the right one for the job. Don’t use templates where you don’t need them. Use your head: there may be other situations, when a template is not the best tool.

Could someone give some good examples of appropriate situations to use a javascript template?

Thanks, Clayton

well it depends on what you’re referring to when you say JavaScript template, Im going to assume youre talking about using JavaScript based frameworks(as Ive seen a few articles on net tuts)

so theres http://cappuccino.org & http://sproutcore.com + a hand full more

you can see some examples here http://cappuccino.org/learn/demos/

and here http://showcase.sproutcore.com

Here is an example of a tut So that tut doesnt explain to me when to use it and for what exactly. I guess my lack of knowledge on this stuff is why I am puzzled. “What do you use this for” is what I am thinking.

Are javascript templates like in the tutorial above good for pulling data from other sites? Or more for internal data to display?

I understand there are several template frameworks out there, but what type of app would you build with one. For some reason I am not getting it….

Again my lack of knowledge and experience of programming is very entry level. I am trying to learn more and more, and always try to find a real world example for me to build my first “hello world” in some new language.