Guys visit this site and please let me know what are the disadvantages of this website ....i am the new user.....

it's incomplete, badly structured, badly (some places even wrong) explained and a re-invention of the wheel. (only it looks like this wheel is rather square than round).

it offers very little information, and for those just starting, not nearly enough.

I applaud people who do the effort to help people out, but being able to code doesn't mean you are a good teacher. I wouldn't recommend that site to anyone.