A lot. The problems should be quite apparent to any developer who has used any mainstream programming languages aside from JavaScript and PHP. But for those who don't have such experience, a few quick Google searches should turn up more than enough information indicating the problems with JavaScript. There's no need to rehash it here.
No, it's not quite apparent at all, and no, a few Google searches did not yield any useful information. (I do however like the high horse you're on, very nice breed indeed.)
I call on your "no need to rehash it here." Without even one good example, I'd say you're just trying to be elitist.
I'm sorry to hear that you've had so much trouble with this very simple exercise.
Let me help set you on the right path. Google for "javascript semicolon insertion". After reading about it, it should be very apparent to you how it's a very large flaw with the language, and how it can be extremely harmful.
Do some research into JavaScript's equality operators. Any good programmer will be sick to his or her stomach after reading about how broken such basic, yet essential, functionality like that is.
And that's just the start, my friend. I encourage you to do further research on your own. You'll find no shortage of serious issues to learn more about.
