How can I know if the current opened page is a post page and not category or archive page using javascript?

Question

I'm creating a gadjet for Blogger(blogspot), this widget will be placed on all pages(post,archive and coutegory pages) but I need to get the url of the current opened post only(not category page, not archive page not any other kind of pages).

I only use javascript code in my gadjet so I need to do that in JS.

In other words how can I know if the current page is post page?

Answer 1

You can some information about the current page on the location global variable:

>>> location.href
"http://stackoverflow.com/questions/8288422/how-can-i-know-if-the-current-opened-page-is-a-post-page-and-not-category-or-arc/8288481#8288481"
>>> location.pathname
"/questions/8288422/how-can-i-know-if-the-current-opened-page-is-a-post-page-and-not-category-or-arc/8288481"