Facebook Tip: Can not Write on Wall or Comment on Facebook ?

What makes us comfortable and fun to use facebook one of them is a feature wall, where we can write our hearts content or just a mild comment on the wall the other person or otherwise, but what if you suddenly can not write on the wall the other people and other people can not write on our wall ?

If other people can not write on our wall, we must first check the settings of the Profile Privacy us, who knows we inadvertently have to Turn Off the wall profile function we thus make people can not write a comment on the wall. Access way into the Settings menu on Privacy Settings and click Profile, then search for Wall post, make sure you give the checklist on the "Friends may post to my Wall" and determine who can write on your Wall.
But what if it functions in Profile Wall fesbuk we do have in-enabled but still others can not write on our wall? There may indeed feature in the Wall has been in our facebook-disable by Facebook ? the reason being that we are over the limit or limits of which have been determined by Facebook.

5 FaceBook Source Code Secrets

I glanced over the Facebook source code for both index and search pages. As an enterprise developer of some experience, source code is always interesting to me as it provides an insight into the health of a company. The interesting highlights of the Facebook code are :

1. Facebook writes pretty clean code & maintains coding standards. The code is readable.

2. To Facebook coder: Calling a function to do the magic isn't an example of clean code; in response to Facebook coders comment - "Holy shit, is this the cleanest fucking frontend file you've ever seen"


3. Facebook doesn't do MVC. There isn't any separation of concerns as far as I could see. It is also not a designer's job. It is created by developers with tons of procedural PHP code.

4. Facebook also doesn't do much object oriented coding either, at least it wasn't apparent from these source files. It is plain and simple procedural code.

5. Facebook uses templates which is nice.

It does some interesting stuff with advertising, specifically estimates the length of page and attributes to determine advertisements to show. There are few interesting ideas here.

Did you expect more? There isn't much more really, take a look yourself. I wonder if MySpace's code is as clean.